Adenocarcinoma of the Intestine (Intestinal Cancer) in Dogs
- Occurrence: rarer
- Location of illness: Abdomen/pelvis
Adenocarcinoma of the intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients. is a malignantMalignant means "cancerous" and is used to describe tumors or neoplasms that grow invasively and have the ability to metastasize. Malignant tumors can cause serious health problems in dogs and cats. tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. disease that originates from the glandular cells of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients.. This neoplasm belongs to the malignantMalignant means "cancerous" and is used to describe tumors or neoplasms that grow invasively and have the ability to metastasize. Malignant tumors can cause serious health problems in dogs and cats. epithelial Tumors of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. Although intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. is one of the less common TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. diseases in dogs overall (about 1–2% of all canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. neoplasms), its aggressive nature and often late diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. make it a serious disease with significant clinical relevance.
The most important facts at a glance
Adenocarcinoma of the intestine is a significant oncological disease of the dog, which, despite its relative rarity, poses a serious clinical challenge due to its aggressive nature and often late diagnosis. The disease originates from the glandular cells of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. and can occur in all sections of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. tract, with the colonThe colon, also known as the large intestine, is the part of the digestive tract that extends from the end of the small intestine to the rectum. Its main functions are the absorption of water and electrolytes, and the processing of waste products for excretion. and rectum being more frequently affected.
The etiologyEtiology is the study of the causes and origins of diseases. It deals with the factors that contribute to the emergence and development of pathological conditions. is multifactorialMultifactorial refers to conditions or diseases that arise from the interplay of several causes or risk factors. In dogs and cats, these can be genetic predispositions, environmental influences, and nutritional factors that together lead to health problems., with genetic predispositions in certain breeds, chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. inflammatory bowel diseases, nutritional factors, and age identified as major risk factors. The clinical picture is characterized by gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. symptoms such as chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., blood in the stool, and altered bowel movement patterns, complemented by systemic manifestations such as Weight loss and reduced performance.
DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. requires a multimodal approach that includes clinical examination, imaging, endoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes. with biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions., and laboratory tests. TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. stagingStaging is the process of determining the extent of a disease's spread, especially in cancer. It helps classify the severity of the condition and plan an appropriate treatment strategy. according to the TNM system is essential for therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. planning and prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop..
TherapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. is based on a multimodal concept, with surgical resection being the treatment of choice for Tumors, if possible. Adjuvant chemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells., radiation therapyRadiation therapy is the use of radiation, most often to treat cancer. It can be used to kill cancer cells or slow their growth without significantly damaging surrounding healthy tissue., and innovative approaches such as targeted therapies and immunotherapy complement the treatment spectrum. PalliativePalliative refers to treatments that aim to alleviate the symptoms of a disease without curing the disease itself. Palliative care focuses on improving the quality of life of patients with incurable diseases. therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. and nutritional care are important components for maintaining quality of life.
The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is significantly influenced by the tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. stage, histological grade, tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. location, and response to therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions.. Close monitoring is crucial for the early detection of relapses and the optimization of quality of life.
Continuous research and development of new therapeutic approaches, especially in the field of targeted therapies and immuno-oncology, offer hope for improved treatment options and prognoses for affected dogs in the future.
Causes
Anatomically, adenocarcinomas can occur in all sections of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. tract, with the colonThe colon, also known as the large intestine, is the part of the digestive tract that extends from the end of the small intestine to the rectum. Its main functions are the absorption of water and electrolytes, and the processing of waste products for excretion. and especially the rectum being more frequently affected than the small intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients.. Histologically, these Tumors are characterized by atypical glandular structures that infiltrate and destroy the normal intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. architecture. The malignancyMalignancy refers to the aggressiveness of a tumor, that is, its ability to grow invasively and metastasize. Malignant tumors can be life-threatening in dogs and cats and require specific treatment. is evident in the ability to locally invade deeper tissue layers as well as to metastasize, predominantly in regional lymph nodes, liver, and lungs.
The disease predominantly affects older dogs with an average age of onset of 9 to 10 years, with no clear gender predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases.. The Tumor biology is similar in many aspects to human colorectal carcinomaA carcinoma is a type of cancer that originates in the epithelial cells that line the inner and outer surfaces of the body. Carcinomas are the most common form of cancer., which makes comparative oncological research particularly interesting.
- Genetic factors: Certain breeds such as Collies, German Shepherds, or Boxers appear to be more frequently affected in individual cases, but reliable statistical accumulations are rare. Individual studies indicate genetic changes in oncogenic signaling pathways (e.g., APC gene, KRAS), analogous to human medicine.
- Environmental and nutritional influences: Highly processed feed components, ObesityObesity is the medical term for severe overweight, characterized by an excessive accumulation of fat in the body. It is often defined by a body condition score that is above the ideal range., and chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. Inflammatory conditions (e.g., inflammatory bowel diseases) could increase the risk.
- Age: IntestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. in dogs usually occurs in middle to older age.
The etiologyEtiology is the study of the causes and origins of diseases. It deals with the factors that contribute to the emergence and development of pathological conditions. of canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma is multifactorialMultifactorial refers to conditions or diseases that arise from the interplay of several causes or risk factors. In dogs and cats, these can be genetic predispositions, environmental influences, and nutritional factors that together lead to health problems. and not yet fully understood. The following factors play a significant role:
Genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases. plays an important role. Certain dog breeds such as Collies, German Shepherds, Boxers, and Dachshunds show an increased incidenceIncidence refers to the number of new cases of a disease or condition that occur within a specific time period in a specific population group. It provides information about the risk of contracting the disease., which indicates hereditary components. Molecular genetic studies have shown parallels to human medicine, with changes in oncogenic signaling pathways such as the APC gene, KRAS, and p53. These genetic alterations lead to impaired cell proliferation and impaired apoptosis.
ChronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Inflammatory conditions of the intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients. (Inflammatory Bowel Disease, IBD) represent a significant risk factor. The persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. inflammatory reaction leads to an increased cell division rate and oxidative stressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being., which promotes DNADNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for the development, function, and reproduction of all known living organisms and many viruses. It is located in the cells of an organism and contains the information for heredity. damage and can promote carcinogenesis. Studies show that dogs with long-term IBD have an increased risk of developing intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. neoplasms.
Nutrition-related factors are increasingly being discussed. A high-fat, low-fiber diet with a high proportion of processed feed components and certain preservatives could increase the risk of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas.. Environmental factors such as exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. to certain carcinogens are also being researched as possible causes.
Age plays a crucial role, as the cumulative exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. to damaging factors and the age-related decrease in DNADNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for the development, function, and reproduction of all known living organisms and many viruses. It is located in the cells of an organism and contains the information for heredity. repair mechanisms promote TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. development. Most affected dogs are of middle to older age, typically over 7 years.
Symptoms
The clinical manifestations of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma in dogs usually develop insidiously and can initially be non-specific, which often leads to a delayed diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. The symptoms vary depending on the location of the Tumors in the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. tract and the extent of the disease.
GastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. symptoms dominate the clinical picture. ChronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. or intermittentIntermittent refers to something that occurs at intervals or starts and stops temporarily, such as intermittent Pain that comes and goes. DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. is one of the most common signs, whereby the stool consistency can vary greatly. Particularly characteristic is the occurrence of blood in the stool, which can appear bright red (in the case of rectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. Tumors) or dark-tarry (in the case of higher Lesions), depending on the location of the Tumors. Mucus admixtures in the stool are also frequently observed.
Altered bowel movement behavior manifests itself in the form of tenesmus (painful pressing during defecation), increased bowel movement frequency, or constipationConstipation is another word for infrequent bowel movements where the stool is hard and difficult to pass. In dogs and cats, this can be caused by diet, lack of exercise, or underlying health issues.. In the case of Tumors in the rectum, the narrowing can lead to a thinner stool strand than usual.
Vomiting occurs particularly in small intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. Tumors and can be chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. or intermittentIntermittent refers to something that occurs at intervals or starts and stops temporarily, such as intermittent Pain that comes and goes.. In advanced cases, partial or complete intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. obstructionobstruction refers to the blockage or narrowing of a hollow organ or canal, which hinders the normal flow of liquids or gases. In dogs and cats, an obstruction can occur in the digestive tract, airways, or urinary tract and often requires immediate medical treatment. can occur, which manifests itself in acute Vomiting, anorexiaAnorexia describes the loss of appetite or the lack of desire to eat. Although often associated with anorexia nervosa, an eating disorder, anorexia can also be caused by other medical and psychological factors., and AbdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain.
Systemic symptoms develop with the progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the disease. ProgressiveProgressive describes a condition or disease that worsens over time. This term is often used to characterize the course of an illness that causes increasingly severe symptoms or damage. Weight loss despite normal or even increased food intake is a warning sign. Lethargy, reduced resilience, and general weakness are expressions of paraneoplastic cachexia. Anemia can develop with a longer course of the disease, recognizable by pale mucous membranes and an increased heart rate.
PalpationPalpation is an examination method in which the condition of body tissues is assessed by feeling them with the hands. It is used to identify swelling, pain, or other abnormalities. can reveal an abdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. massIn pathology, the term “mass” is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer). in advanced cases, especially in the case of larger Tumors or enlarged mesenteric lymph nodes. AscitesAscites refers to the accumulation of free fluid in the abdominal cavity, which can lead to visible abdominal distension. It can be caused by various diseases, including liver disease, cancer, or heart failure. can occur as a result of peritoneal carcinosis or portal hypertensionHypertension, or high blood pressure, is a condition in which the blood pressure in the arteries is consistently elevated. In dogs and cats, this can lead to damage to organs such as the heart, kidneys, and eyes, and requires medical treatment. in the case of liver metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body..
Diagnosis
- Clinical examination: Typical symptoms, palpation of the abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen., rectal examinationA rectal examination is a clinical examination method in which a doctor or veterinarian inserts a finger or instrument into the anus to check the rectum and surrounding structures for abnormalities. (for localized Tumors in the rectum).
- Imaging procedures: Ultrasound and X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions. to detect constrictions or massesIn pathology, the term "mass" is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer).; CT/MRI for precise localization and surgical planning.
- EndoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes.: ColonoscopyA colonoscopy is a diagnostic procedure where the inside of your large intestine (colon) is examined with a colonoscope, a flexible tube with a camera, to look for abnormalities or diseases, or to take tissue samples. with simultaneous biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. is considered the gold standard for diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients..
- Laboratory findings: Blood counts can provide indications of chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Inflammatory conditions or anemia.
The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma in dogs requires a systematic approach and the combination of various diagnostic procedures. An early and precise diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is crucial for therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. planning and prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. assessment.
The clinical examination forms the basis of the diagnostics. A thorough anamnesis records the type, duration, and progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the symptoms. The general and special examination includes palpationPalpation is an examination method in which the condition of body tissues is assessed by feeling them with the hands. It is used to identify swelling, pain, or other abnormalities. of the abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen. to detect massesIn pathology, the term "mass" is used to describe an abnormal lump or growth in the body. A mass can form in the skin or subcutaneous tissue, or even inside the body. The causes can be benign (not cancer) or malignant (cancer)., tenderness, or organ enlargements. A rectal examinationA rectal examination is a clinical examination method in which a doctor or veterinarian inserts a finger or instrument into the anus to check the rectum and surrounding structures for abnormalities. is mandatory if colorectal Tumors are suspected and can already be diagnostic for deeper rectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. Tumors.
Imaging procedures play a central role. Abdominal sonography enables the visualization of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. wall changes, mesenteric lymph nodes, and possible metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body. in the liver or spleen. Characteristic findings are segmental intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. wall thickening with loss of normal layering and reduced peristalsis. X-rays of the abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen. can provide indications of obstructions, ileus, or foreign bodies. Computed tomography (CT)Computed tomography (CT) is an imaging technique that uses X-rays and computer technology to create cross-sectional images of the body. It enables a detailed view of bones, organs, and other structures and is used for the diagnosis of injuries, diseases, and for planning medical interventions. or magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs. are optimal for precise stagingStaging is the process of determining the extent of a disease's spread, especially in cancer. It helps classify the severity of the condition and plan an appropriate treatment strategy., as they enable a detailed representation of the local Tumor spread and possible distant metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body..
EndoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes. with biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. is considered the gold standard for the definitive diagnosis. A colonoscopyA colonoscopy is a diagnostic procedure where the inside of your large intestine (colon) is examined with a colonoscope, a flexible tube with a camera, to look for abnormalities or diseases, or to take tissue samples. enables direct visualization of the Tumors and the targeted removal of tissue samples for histopathologicalHistopathological refers to the microscopic examination of tissue samples for the diagnosis of diseases. This technique is used to identify the specific characteristics of diseases at the cellular level in dogs and cats. examination. In the case of higher small intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. Tumors, a gastroduodenoscopy or an exploratory laparotomyAn exploratory laparotomy is a surgical procedure in which the abdominal cavity is opened to examine internal organs and make a diagnosis. This procedure is used in dogs and cats when imaging techniques do not allow a clear diagnosis. with intraoperative biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. may be necessary.
Laboratory diagnostic tests include a complete blood count, which can provide indications of anemia, inflammatory reactions, or paraneoplastic syndromes. SerumSerum is the liquid part of the blood that remains after coagulation. It does not contain blood cells or coagulation factors, but many other proteins, antibody and electrolytes. Serum is used in diagnostics for a variety of blood tests. biochemistry is used to assess organ functions, especially of the liver and kidneys, which is important for therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. planning. Stool tests help to rule out infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. or parasiticParasitic refers to diseases or conditions caused by parasites. Parasitic infections can affect the digestive tract, skin, and other organ systems. causes in a differential diagnosisDifferential diagnosis is the process of weighing two or more conditions that cause similar symptoms to determine the specific cause of a patient's symptoms..
The histopathologicalHistopathological refers to the microscopic examination of tissue samples for the diagnosis of diseases. This technique is used to identify the specific characteristics of diseases at the cellular level in dogs and cats. examination of the biopsies provides the definitive diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and enables the determination of the TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. type, the grade of differentiation, and the depth of invasion. Immunohistochemical tests can provide additional prognostic information and help in the differentiation from other gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. Tumors.
TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. stagingStaging is the process of determining the extent of a disease's spread, especially in cancer. It helps classify the severity of the condition and plan an appropriate treatment strategy. according to the TNM system (Tumor-Node-Metastasis) is essential for therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. planning and prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. assessment. It takes into account the size and local invasion of the primaryPrimary refers to the first or original cause of a disease or condition, as opposed to secondary causes or symptoms that develop from it. TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. (T), the involvement of regional lymph nodes (N), and the presence of distant metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body. (M).
Therapy
- Surgical removal of the Tumors is the preferred form of treatment, provided that the Tumors is resectableResectable means that a tumor or tissue can be surgically removed. The decision of whether a lesion is resectable depends on its size, location, and relationship to surrounding structures. and there are no extensive metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body.. Removal of the affected section of the intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients. with subsequent end-to-end anastomosis (suturing the ends of the intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients. together) is crucial in curative cases. An adequate safety zone is important to completely remove TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. cells.
- ChemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. and radiation therapyRadiation therapy is the use of radiation, most often to treat cancer. It can be used to kill cancer cells or slow their growth without significantly damaging surrounding healthy tissue. can be used in some cases to control or slow Tumor growth. ChemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. is often used as an adjuvant (supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease.) therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., especially in advanced Tumors or when lymph nodes are affected. Protocols with agents such as 5-FU, doxorubicin, or carboplatin are being tested.
- SupportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. measures for inoperable Tumors or metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body. include dietary adjustments, pain relievers, and possibly corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions. to relieve symptoms.
Supplements to therapy
The treatment of canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma requires a multimodal approach that must be tailored to the individual TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. stage, location, and general condition of the patient. The therapeutic spectrum includes surgical, drug-based, and supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. measures.
Surgical resection is the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. of choice, provided that the Tumors is locally confined and resectableResectable means that a tumor or tissue can be surgically removed. The decision of whether a lesion is resectable depends on its size, location, and relationship to surrounding structures.. The goal is complete removal of the Tumors with adequate safety margins (ideally 5–10 cm proximalProximal describes a position closer to the torso or the point of origin of a body part. The term is used to describe the location of structures in relation to the body as a whole or to a specific organ. and distal to the visible TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. margin) and the associated mesenteric lymph nodes. The continuity of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. tract is restored by an end-to-end anastomosis. In the case of rectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. Tumors, a subtotal colectomy or a partial rectum resection may be necessary. HistopathologicalHistopathological refers to the microscopic examination of tissue samples for the diagnosis of diseases. This technique is used to identify the specific characteristics of diseases at the cellular level in dogs and cats. examination of the resection margins is crucial to assess the completeness of TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. removal. Complications such as anastomotic insufficiencyInsufficiency refers to the inadequate function or performance of an organ or system. This can include, for example, heart failure, kidney failure, or venous insufficiency., peritonitis, or postoperative ileus must be closely monitored.
Adjuvant chemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. is used, in particular, in the event of incomplete resection, lymph node involvement, or existing metastasisA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body.. Protocols based on 5-fluorouracil in combination with leucovorin have proven effective, whereby the toxicityToxicity is the measure of a substance's harmfulness or poisonousness. Toxicity can vary depending on the dose, route of exposure, and individual sensitivity. in the dog must be carefully monitored. Alternative protocols include doxorubicin, carboplatin, or gemcitabine. The duration of therapy is typically 4–6 months, with regular check-ups to assess the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. response and possible side effects.
Radiation therapyRadiation therapy is the use of radiation, most often to treat cancer. It can be used to kill cancer cells or slow their growth without significantly damaging surrounding healthy tissue. can be considered as a local treatment option for rectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. Tumors or after incomplete resection. Modern techniques such as intensity-modulated radiation therapyRadiation therapy is the use of radiation, most often to treat cancer. It can be used to kill cancer cells or slow their growth without significantly damaging surrounding healthy tissue. (IMRT) enable precise dose application while protecting the surrounding tissue. The treatment is typically fractionated over several weeks.
Targeted therapies and immunotherapy represent innovative treatment approaches that are increasingly being researched in veterinary oncologyOncology is the branch of medicine that deals with the diagnosis, treatment, and research of cancer. In veterinary medicine, this includes the treatment of cancers in animals.. Tyrosine kinase inhibitors such as toceranib have shown promising results in initialInitial means beginning or at the start. In medicine, it can refer to the first symptoms of a disease or the first phase of a treatment process. studies on gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. Tumors. Immunotherapeutic approaches aim to strengthen the body’s own immune responseAn immune response is the immune system's reaction to foreign substances (antigens), such as microorganisms or proteins. It involves a series of processes aimed at recognizing, fighting, and eliminating these antigens. against the TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions..
PalliativePalliative refers to treatments that aim to alleviate the symptoms of a disease without curing the disease itself. Palliative care focuses on improving the quality of life of patients with incurable diseases. therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. focuses on maintaining the quality of life in inoperable or metastasized Tumors. Pain management with multimodal analgesicAn analgesic is a medication used to relieve Pain without affecting the patient's level of consciousness. protocols, appetite stimulants, and antiemeticsAntiemetics are medications used to prevent or treat Nausea and Vomiting. In dogs and cats, they are used in various situations, including after surgery, for motion sickness, or for certain conditions that cause Nausea. can significantly improve the quality of life. In the event of partial obstructionobstruction refers to the blockage or narrowing of a hollow organ or canal, which hinders the normal flow of liquids or gases. In dogs and cats, an obstruction can occur in the digestive tract, airways, or urinary tract and often requires immediate medical treatment., steroidsSteroids are a group of lipids that include both hormones and certain medications. In veterinary medicine, steroids are used to treat inflammatory conditions, allergies, and autoimmune diseases in dogs and cats. can contribute to reducing peritumoral Inflammation.
Nutritional care is an essential component of the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. concept. An individually adapted, easily digestible diet with high-quality proteins and an adjusted fiber content supports the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. function and prevents Tumor-associated cachexiaCachexia is a condition of extreme weight loss and muscle atrophy, often associated with serious illnesses such as cancer, heart failure, or AIDS. It is characterized by weakness, lethargy, and a significant loss of body mass.. If necessary, parenteral nutrition concepts or the placement of a feeding tube can be considered.
Prognosis and follow-up care
The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. depends on various factors. These are:
- Tumor stage and location: The prognosis can be relatively favorable (months to years) for early-detected, locally confined Tumors and complete resection. If metastasisA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body. in lymph nodes, liver, or lungs is already present, the life expectancy decreases significantly.
- Recurrence rate: Intestinal adenocarcinomas can recur after surgery, especially if the resection margins were not clear.
- Long-term survival: With intensive aftercare and adequate adjuvant therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., survival times of one year or more are possible.
Aftercare
- Regular check-ups: Postoperatively, imaging procedures (ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow., X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions., possibly CT) and laboratory tests every 3–6 months.
- Nutrition: Easily digestible, low-fiber, or adapted diets can support digestion and protect the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. segment.
- Observation of bowel movement habits: Changes in stool consistency or blood admixtures should be clarified by a veterinarian immediately.
The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma varies considerably and is influenced by several factors. The Tumor stage at the time of diagnosis is the most important prognostic factor. Early-detected, locally confined Tumors with complete surgical resection offer the best prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. with medianMedian refers to the midline or center of the body or an organ. In veterinary medicine, the term can be used to describe the location of a structure in relation to the center of the body. survival times of 12 to 18 months. In advanced Tumors with lymph node involvement, the median survival time is reduced to 6–10 months, while the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is significantly less favorable at 2–4 months in the event of existing metastasisA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body..
The histological grade of differentiation significantly influences the course of the disease. Well-differentiated adenocarcinomas show a less aggressive behavior than poorly differentiated Tumors, which are characterized by a higher mitosis rate and invasiveness. The depth of invasion into the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. wall correlates with the risk of metastasis and the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop.. Tumors that are limited to the mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. and submucosa (T1/T2) have a better prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. than those that infiltrate the muscularis and serosaThe serosa is a thin membrane that lines and protects certain internal hollow organs of the body. It produces a serous fluid that acts as a lubricant to reduce friction between the organs. (T3/T4).
The location of the Tumors in the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. tract influences both the surgical resectability and the prognosis. RectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. Tumors are often detected earlier due to noticeable symptoms such as tenesmus or visible blood in the stool, while small intestinal Tumors are often only diagnosed in advanced stages.
The response to adjuvant therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. is an important prognostic indicator. Patients who show a complete or partial remission after chemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. have a significantly longer survival time than those with stable disease or progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms..
Aftercare plays a crucial role in the long-term management and early detection of recurrences or metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body.. Regular check-ups should be carried out every 1–2 months in the first 6 months after therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., then every 3–6 months. These include a clinical examination, blood count checks, and imaging procedures such as ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or CT/MRI.
Monitoring nutrition and body weight is important. Continuous Weight loss can indicate a recurrence or metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body.. Adjusting the diet to the individual needs of the patient can significantly improve the quality of life.
The owner’s observation of bowel movement habits is an important part of aftercare. Changes in stool consistency, color, or frequency, as well as the recurrence of blood in the stool, should be clarified by a veterinarian immediately.
The psychosocial support of pet owners is an often underestimated aspect of aftercare. The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. in a beloved pet represents a significant emotional burden. Open communication about the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. options, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop., and quality of life aspects, as well as, if necessary, referral to self-help groups, can make it easier to cope with the disease.
Prevention
To prevent intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. in dogs, a high-fiber, balanced diet with a high-quality protein source is recommended. Regular stool tests help to rule out parasiticParasitic refers to diseases or conditions caused by parasites. Parasitic infections can affect the digestive tract, skin, and other organ systems. infestation, which can promote long-term Inflammatory conditions. Chronic intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. Inflammatory conditions should be treated consistently to avoid damage to the intestinal mucosa. Preventative examinations, especially in older dogs, can detect Tumors early by ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. or X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions.. Blood in the stool, Weight loss, or recurring digestive problems are warning signs that must be clarified by a veterinarian immediately. In breeds with a genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases., closer monitoring may be useful.
Outlook on current research
Research in the field of canine intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma is currently experiencing a significant upswing, enabled by technological advances and a deeper understanding of tumor biology. Current research focuses on several promising areas that have the potential to fundamentally improve the diagnosis and therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. of this challenging disease.
Molecular oncology opens up new perspectives for personalized medicine in veterinary oncologyOncology is the branch of medicine that deals with the diagnosis, treatment, and research of cancer. In veterinary medicine, this includes the treatment of cancers in animals.. Through Next-Generation Sequencing (NGS), genetic alterations can be identified in canine intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinomas that serve as potential therapeutic targets. Studies have shown that similar molecular signaling pathways are affected as in human colorectal cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas., including the Wnt/β-catenin signaling pathway, EGFR overexpression, and mutations in the KRAS gene. These findings enable the development of targeted therapies that specifically target the molecular drivers of tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. growth.
Immuno-oncology represents a revolutionary approach in cancer therapy. Checkpoint inhibitors such as anti-PD-1/PD-L1 antibodies, which are already established in human medicine, are increasingly being investigated in veterinary studies. Initial results show promising response rates in various canine Tumors, including gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. neoplasms. The identification of biomarkers that can predict a response to immunotherapy is an active area of research.
Innovative therapeutic approaches include the development of nanoparticles for targeted drug delivery, which means transporting drugs specifically to certain locations in the body to increase effectiveness and minimize side effects. Photodynamic therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., in which light-activatable substances selectively destroy tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. cells, is being explored for endoscopically accessible Tumors. Electroporation and electrochemotherapy combine electrical fields with chemotherapeutic agents to improve drug uptake in tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. cells.
Comparative oncologyOncology is the branch of medicine that deals with the diagnosis, treatment, and research of cancer. In veterinary medicine, this includes the treatment of cancers in animals. is becoming increasingly important. Canine intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinomas show remarkable similarities to human colorectal carcinomas, making the dog a valuable model for translational research. Cooperative studies between veterinary and human medicine enable the accelerated development and testing of new therapeutic approaches, from which both animal and human patients can benefit.
Liquid biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. technologies enable the non-invasive determination of circulating tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. DNADNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for the development, function, and reproduction of all known living organisms and many viruses. It is located in the cells of an organism and contains the information for heredity. (ctDNA) or circulating tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. cells (CTCs) in the blood. These methods could revolutionize early detection, therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. monitoring, and early detection of relapses. Initial studies in dogs with various TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. diseases show promising results that justify further research in this area.
PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. strategies are being increasingly explored. The identification of high-risk populations through genetic tests could enable intensified monitoring programs. Studies on chemopreventive substances such as non-steroidalNon-steroidal refers to medications or substances that are not steroids and often have anti-inflammatory, analgesic, or antipyretic effects. They are used in dogs and cats to treat Pain and Inflammatory conditions. anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain., which reduce the risk for colorectal carcinomas in humans, are also being carried out in dogs.
The integration of artificial intelligence and machine learning into image analysis could improve the early detection and stagingStaging is the process of determining the extent of a disease's spread, especially in cancer. It helps classify the severity of the condition and plan an appropriate treatment strategy. of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinomas. Algorithms for analyzing endoscopic images or radiological images could detect subtle changes that escape the human eye.
Frequently asked questions (FAQs)
- What is intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma in dogs?
An intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinoma is a malignantMalignant means "cancerous" and is used to describe tumors or neoplasms that grow invasively and have the ability to metastasize. Malignant tumors can cause serious health problems in dogs and cats. TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. that originates from the glandular cells of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosa. According to Withrow & MacEwen’s Small Animal Clinical Oncology, these Tumors are a relevant, though not regular, cause of gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. symptoms in dogs.
2. What typical signs indicate intestinal cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas.?
These include DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. (often chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time.), blood in the stool (both bright red and tarry dark), Vomiting, AbdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain, Weight loss, and a poor general condition. petsvetcheck.de advises seeking veterinary clarification early on if these symptoms occur.
3. How is intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. diagnosed?
- EndoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes. with biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions.: Provides a reliable diagnosis.
- Imaging (ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow., X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions., CT/MRI): To assess the extent of spread (stagingStaging is the process of determining the extent of a disease's spread, especially in cancer. It helps classify the severity of the condition and plan an appropriate treatment strategy.).
- Blood and stool tests: Provide additional information on organ functions or Blood loss.
The BSAVA Manual of CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. and FelineFeline refers to anything related to cats. The term is used to describe diseases, behaviors, or anatomical aspects that are specific to cats. OncologyOncology is the branch of medicine that deals with the diagnosis, treatment, and research of cancer. In veterinary medicine, this includes the treatment of cancers in animals. emphasizes the importance of accurate diagnosis before starting therapy.
4. Can surgery cure the TumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions.?
Surgical removal of the affected intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. segment offers the best chance of cure or at least significant life extension, provided the Tumor is locally confined and there are no distant metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body..
5. What role does chemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. play?
In advanced or metastatic Tumors, chemotherapyChemotherapy refers to the treatment of diseases, especially cancer, with chemical substances or drugs. It aims to kill cancer cells or prevent their growth, but can also affect healthy cells. can delay the progression of the disease. In combination with surgery, it helps to prevent relapses. However, the effectiveness depends on the individual tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. profile.
6. Are there preventive measures against intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancer?Clear prophylaxisProphylaxis refers to preventive measures taken to avoid diseases or health problems. In veterinary medicine, this can include vaccinations, regular deworming, and other preventive treatments. strategies are hardly established. Nevertheless, a healthy body weight, high-quality food, and early treatment of intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. inflammation may reduce the risk of cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. development.
7. Is a dietary adjustment necessary for intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas.?Yes, depending on the location and intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. segment, a easily digestible, balanced diet can facilitate digestion and relieve symptoms. Special types of food are often used for chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. diseases and can also be useful for tumorA tumor is an abnormal growth of tissue that can be benign or malignant. Tumors can develop in any part of the body and affect various functions. patients.
8. What aftercare is recommended after surgery?
- Regular check-ups (blood values, imaging) every 3–6 months.
- Monitoring of complications such as DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., Weight loss and Pain.
- Wound care and observation of the surgical suture.
9. What is the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. adenocarcinomas?
The prognosis varies greatly. With early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and successful surgery, a survival time of several months to several years is possible. In advanced Tumors with metastasesA metastasis is a secondary tumor that originates from a primary, malignant tumor in another part of the body. Metastases indicate that cancer has spread in the body., however, the lifespan can be limited to a few months.
10. How can I best support my dog with intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas.?
Pay attention to a balanced diet, ensure stress reduction, and ensure regular veterinary examinations. Complete communication with the veterinary team, for example regarding occurring symptoms or changes in behavior, is crucial.
You can find an interesting overview of gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. problems in dogs, supplemented with information on the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. microbiome and the importance of probiotics, here: https://petsvetcheck.de/fachbeitrag/magen-darm-probleme-beim-hund/