Renal Adenocarcinoma (Kidney Cancer) in Dogs
- Occurrence: rarer
- Location of illness: Abdomen/pelvis
Renal adenocarcinoma, also known as kidney 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 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. neoplasm that develops from the glandular epithelial cellsEpithelial cells are the cells that make up epithelial tissue. They line the outer surfaces of the body, as well as internal cavities, ducts, and organs, and perform functions such as protection, absorption, secretion, and filtration. of the renal parenchyma. This form 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. belongs to the group of primaryPrimary refers to the first or original cause of a disease or condition, as opposed to secondary causes or symptoms that develop from it. kidney Tumors and accounts for approximately 60–85% of all 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. renal neoplasms in dogs. Histologically, adenocarcinoma is characterized by atypical epithelial cellsEpithelial cells are the cells that make up epithelial tissue. They line the outer surfaces of the body, as well as internal cavities, ducts, and organs, and perform functions such as protection, absorption, secretion, and filtration. that form gland-like structures and exhibit an invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. growth pattern.
The most important facts at a glance
Renal adenocarcinoma in dogs is a rare but aggressive 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 predominantly affects older animals. The etiology 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 and environmental influences. Clinically, the disease often presents only in advanced stages with non-specific symptoms such as weight loss, lethargy, and hematuria, which makes early detection difficult.
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 consisting of clinical examination, laboratory diagnostics, imaging, and 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. evaluation. Comprehensive 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. 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. Surgical removal 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. by nephrectomy remains the most important 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. option for localized tumors, while adjuvant treatments such as 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. or targeted therapies can be considered for advanced disease.
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. varies considerably depending on 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, and success of surgical resection. Structured follow-up care with regular clinical, laboratory diagnostic, and imaging examinations is essential to detect recurrences early and monitor kidney function. 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, especially an adapted diet, contribute significantly to maintaining the quality of life.
Despite advances in diagnostics 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., renal adenocarcinoma remains a challenge 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.. The exploration of new molecular markers and innovative therapeutic approaches, inspired by findings from human medicine, offers hope for improved treatment outcomes in the future.
Causes
Compared to other cancers in dogs, kidney tumors are relatively rare, with an 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. (frequency) of less than 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. Nevertheless, they pose a particular challenge due to their 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.. Renal adenocarcinoma can occur unilaterally or bilaterally, with unilateral involvement being more common. The disease predominantly affects older dogs with an average age of onset of 8 to 9 years, although dogs of any age can be affected.
Noteworthy is the similarity between canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. kidney 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. and renal cell 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. in humans, which makes this disease interesting for comparative oncological research. Both types of tumors show similar molecular signaling pathways and changes, making dogs a valuable model for researching new therapeutic approaches.
- 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.: Current studies suggest that certain dogs may have 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. to renal adenocarcinomas. Mutations in oncogenic signaling pathways (e.g., in genes such as VHL or HIF) play a role, analogous to findings in human medicine.
- Environmental Factors: 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 chemicals or 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. kidney diseases can promote the development of a kidney 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..
Breed Aspects: Even if no clear accumulation is known, a higher 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. is occasionally reported in some larger breeds such as the German Shepherd, Golden Retriever, or Bernese Mountain Dog.
The exact 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 renal adenocarcinoma in dogs 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. Current research indicates a complex interplay of genetic and environmental factors:
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 a crucial role in the development of kidney 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.. Recent molecular genetic studies have shown that mutations 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. suppressor genes such as VHL (von Hippel-Lindau) and oncogenes such as MET, similar to humans, can contribute to 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. These genetic changes lead to a dysregulation of cellularCellular refers to cells or consisting of cells. In biology and medicine, it refers to processes, structures, or functions that occur at the level of individual cells. signaling pathways, especially the HIF (hypoxia-inducible factor) pathway, resulting in uncontrolled cell growth and increased angiogenesis.
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. kidney diseases can increase the risk of developing renal adenocarcinoma. Prolonged inflammatory processes and repeated tissue damage can lead to 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 promote 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. transformation. Likewise, nephrotoxic substances such as certain heavy metals, pesticidesPesticides are chemical or biological substances used to control pests, including insects, weeds, and fungi. In dogs and cats, exposure to certain pesticides can be harmful to health and lead to signs of poisoning., or medications can damage the kidney tissue and contribute to 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 in the long term.
Although no clear breed 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. has been demonstrated, a certain accumulation is observed in medium to large dog breeds such as German Shepherds, Golden Retrievers, Labrador Retrievers, and Bernese Mountain Dogs. This could indicate breed-specific genetic factors that increase susceptibility to kidney tumors.
Hormonal factors are also discussed, as some studies have found a higher 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. in male dogs, which could indicate a possible influence of sex hormones. However, the data on this are not yet conclusive.
Symptoms
The clinical manifestations of renal adenocarcinoma in dogs are often non-specific and develop insidiously, which makes early detection difficult. The symptoms can vary depending on 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, size, and degree of 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 early stages, the disease is often asymptomaticAsymptomatic means that there are no recognizable symptoms of a disease. An animal can have a disease or infection without showing visible signs, which can make diagnosis and treatment more difficult., as the healthy kidney can compensate for the function. However, as the tumor grows, signs of illness may increasingly appear. The most common symptoms include lethargy, reduced appetite to 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 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. These non-specific signs are often initially attributed to the age of the animal, which can lead to delays in 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..
Hematuria (Blut im Urin) is a characteristic symptom in about 20–40% of affected dogs and results from the invasion 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. into the renal pelvis or the draining urinary tract. The blood admixtures can occur intermittently and be macroscopically visible or only microscopically detectable. In advanced cases, flank Pain may occur, which is expressed by Sensitivity to touch in the kidney area or Behavioral changes such as unwillingness to move.
In larger Tumors, a palpable (feelable) increase in circumference can be detected in the cranialCranial refers to a position that is closer to the head or towards the head of an animal. In veterinary medicine, the term is used to describe the location of structures or diseases in relation to the head. 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.. In about 30% of cases, affected dogs develop secondary arterial 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., which can lead to further clinical manifestations such as retinal Bleeding or neurological symptoms. Paraneoplastic syndromes such as hypercalcemia, polycythemiaPolycythemia is a blood disorder characterized by an increased number of red blood cells in the bloodstream. This can lead to increased blood viscosity and cause problems such as blood clots, strokes, or heart attacks. In dogs and cats, polycythemia can be primary (as a stand-alone disease) or secondary (as a reaction to other conditions)., or Fever of unknown origin can also occur and are due to the production of bioactive substances 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..
In advanced disease with 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., additional organ-specific symptoms may occur, especially Cough, dyspneaDyspnea, also known as shortness of breath, is the subjective feeling of breathlessness or difficulty breathing. It can be a symptom of a variety of conditions, including heart disease, lung disease, and anemia., or exercise intolerance in pulmonaryPulmonary refers to the lungs or the respiratory system. Pulmonary diseases in dogs and cats include conditions such as Pneumonia, asthma, and pulmonary hypertension. 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., or neurological deficits in bone 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.. Approximately 50% of dogs already show signs of 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. at 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. presentation, most commonly in the lungs, regional lymph nodes, liver, and bones.
Diagnosis
- Imaging techniques 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., X-rays, or CT scans to identify Tumors in the kidneys
- Biopsy 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. to confirm 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. and assess 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. grade
- Laboratory tests to check kidney function and the general condition of the dog
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 renal adenocarcinoma in dogs requires a systematic approach with various, complementary examination methods. 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 is the starting point of the diagnostics. 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. may reveal an enlarged, firm, or painful kidney. AuscultationAuscultation is an examination method in which the doctor uses a stethoscope to listen to the sounds in the body, especially in the heart, lungs, and intestines, in order to obtain information about the state of health. of the thorax can provide indications of pulmonaryPulmonary refers to the lungs or the respiratory system. Pulmonary diseases in dogs and cats include conditions such as Pneumonia, asthma, and pulmonary hypertension. 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.. Laboratory tests include a complete blood count, 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, and urinalysis. Typical findings may include normochromic, normocytic anemia, leukocytosis, elevated kidney parameters (ureaUrea, also known as carbamide, is a waste product of protein metabolism in the body. It's formed in the liver and excreted by the kidneys in urine. The urea level in the blood indicates kidney function., creatinineCreatinine is a waste product that results from the breakdown of creatine, a chemical compound that provides energy in the muscles. The concentration of creatinine in the blood and urine is an important indicator of kidney function.) in advanced disease, and Hematuria in the urine sedimentUrine sediment refers to the solid component of urine that settles when the urine is centrifuged. Microscopic examination of the sediment can provide clues to various kidney or urinary tract diseases, including the detection of cells, crystals, bacteria, and other components.. In some patients, elevated calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels may also occur as a paraneoplastic phenomenon.
Imaging plays a central role in diagnostics. 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. 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. is usually the first imaging method and can show changes in size, shape, and echotexture of the kidney. Typically, renal adenocarcinomas appear as heterogeneousHeterogeneous describes a composition of different elements or components. In biology and medicine, it often refers to tissues, cells, or molecules that vary in structure, function, or both., often hyperechoic 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). with irregular margins and possible cystic or necrotic areas. Doppler sonography can also provide information about the vascularization 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. and possible invasion into the renal vessels or the vena cava caudalis.
For comprehensive 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., further imaging procedures such as chest X-rays (for 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. search), 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 essential. These modalities allow a more precise assessment of the local 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. extension, vascular invasion, and potential 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 particular, contrast-enhanced CT has proven valuable for preoperative planning 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..
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. requires a 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. This can be done by fine needle aspiration, a Tru-Cut 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., or after surgical removal 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.. Fine needle aspiration is minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. but often provides only limited diagnostic information and carries the risk 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. seeding. The Tru-Cut 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. offers more tissue for histological assessment but is more invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. and associated with similar risks. 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 after nephrectomy provides the most comprehensive information about tumor type, grade, and invasiveness.
Molecular diagnostics is gaining increasing importance. Immunohistochemical examinations can detect specific 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. markers such as cytokeratin, vimentin, or CD10 and contribute to a more accurate classification. Genetic analyses can identify prognostically relevant mutations and identify potential targets for targeted therapies.
Therapy
- Surgical Removal: A nephrectomy (removal of the affected kidney) is often the first choice, provided the second kidney is functional and 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. has not yet formed 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..
- 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.: Certain protocols (e.g., based on doxorubicin) are used depending on 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. The effectiveness is still the subject of current studies.
- Targeted Therapies (Targeted 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.): Based on advances in human medicine, inhibitors of signaling pathways (tyrosine kinase inhibitors) are being researched.
- Immunotherapy: 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. approaches in which immune checkpoint inhibitors are tested show potential but need further evaluation.
SupportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. therapies to relieve Pain and improve quality of life.
The treatment of renal adenocarcinoma in dogs is based on a multimodal approach, with surgical intervention still being the most important pillar. The therapy decision must be made individually, taking into account 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, the general condition of the patient, and the available technical options.
A surgical removal 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. by radical nephrectomy 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 for localized, non-metastatic tumors. Here, the affected kidney is removed together with the surrounding fat capsule, the 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. ureter, and the regional lymph nodes. For very large tumors or suspected vascular invasion, an extended approach may be necessary. The operation should be performed by an experienced surgeon, as intraoperative complications such as severe Bleeding can occur due to the rich vascularization of the kidney. A prerequisite for nephrectomy is sufficient functionality of the contralateralThe term "conlateral" appears to be a misspelling. It may refer to "contralateral," which describes the opposite side of the body. In veterinary medicine, it can refer to symptoms or findings that occur on the opposite side of the body. kidney, which should be ensured preoperatively by means of laboratory tests and imaging procedures.
In selected cases with small, well-defined tumors, a partial nephrectomy (kidney-preserving surgery) can be considered. This technique is technically more demanding but can be advantageous in bilateral tumors or in patients with impaired kidney function. Newer minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. techniques such as laparoscopic nephrectomy are becoming increasingly important and can contribute to faster postoperative recovery.
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 controversially discussed, as its effectiveness in canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. renal adenocarcinoma has not been clearly proven. However, it can be considered in patients with a high risk of 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., incomplete 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. resection, or pre-existing 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.. Protocols based on doxorubicin, carboplatin, or mitoxantrone are most commonly used, with response rates being variable. A combination of different chemotherapeutic agents may be beneficial in some cases.
Targeted therapies, especially tyrosine kinase inhibitors such as Toceranib (Palladia®) or Masitinib, represent a promising option. These drugs inhibit specific signaling pathways that are important 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. growth and angiogenesis. Studies have shown that they can lead to stabilization of the disease in some dogs with advanced kidney 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.. The identification of predictive biomarkers could enable better patient selectionSelection refers to the process of natural or artificial selection of specific individuals for reproduction, based on desired genetic traits. In breeding, this is applied to promote specific characteristics in dogs and cats. for this form of 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 the future.
Immunotherapy with checkpoint inhibitors is still in the experimental stage but shows promising results in preclinical studies. These drugs reactivate the body’s own immune systemThe immune system is the body's defense system against infectious agents such as bacteria, viruses, fungi, and parasites. It comprises a complex network of organs, cells, and molecules that work together to protect the body. to recognize and fight 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. 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. clinical trials with antibodies against PD-1/PD-L1 in dogs with various types of tumors, including renal carcinomas, are currently underway.
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 are an essential component of the treatment concept. These include an adapted diet (kidney-friendly diet in case of impaired kidney function), adequate pain 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 the treatment of concomitant diseases. In patients with advanced disease, 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. care is the focus, with the aim of maintaining the quality of life for as long as possible.
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 the stage of the disease, the size and location of the tumor, and the response to treatment. Tumors diagnosed and treated early usually 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.. However, kidney 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 often diagnosed only in an advanced stage, which complicates treatment 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.. In such cases, treatment focuses on slowing 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 and maintaining the dog’s quality of life for as long as possible. The survival rate varies greatly depending on the individual case, and follow-up care is important to detect and treat relapses 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. early.
Aftercare
- Regular Check-ups: Blood and urine tests, imaging procedures (X-rays, 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.) at intervals of 3 to 6 months.
- Nutrition and Management: A dietary adjustment (kidney-friendly feeding) can help support the function of the remaining kidney.
- Quality of Life: Special attention to possible symptoms of kidney weakness (e.g., increased thirst, weight loss) and early therapeutic interventions contribute to an improved 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. for dogs with renal adenocarcinoma varies considerably and depends on several factors, including 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 at 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., histological grade, presence of 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., and success of surgical resection. Careful follow-up is essential to detect recurrences early and optimize quality of life.
In dogs with localized tumors that could be completely surgically removed, the median survival time is between 12 and 24 months. Factors associated with a more favorable 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. include a low histological 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. grade, the absence of vascular invasion, and negative resection margins. In contrast, patients with advanced disease, especially in 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., have a significantly poorer 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 3 to 6 months despite multimodal 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..
The histological subtype of adenocarcinoma can have prognostic relevance. Papillary and tubular variants tend to show a less aggressive behavior than solid or sarcomatoid subtypes. Molecular markers such as the expression of VEGF (Vascular Endothelial Growth Factor), Ki-67, or p53 are increasingly being investigated as potential prognostic indicators.
A structured follow-up program is essential for all patients after treatment of renal adenocarcinoma. In the first six months after the operation, monthly check-ups are recommended; after that, the intervals can be extended to three to six months if the course is stable. Each follow-up examination should include a thorough clinical examination, blood and urine analyses, and imaging procedures.
Monitoring kidney function is particularly important, as the remaining kidney must take over the entire excretory function. Regular determinations of ureaUrea, also known as carbamide, is a waste product of protein metabolism in the body. It's formed in the liver and excreted by the kidneys in urine. The urea level in the blood indicates kidney function., creatinineCreatinine is a waste product that results from the breakdown of creatine, a chemical compound that provides energy in the muscles. The concentration of creatinine in the blood and urine is an important indicator of kidney function., electrolytesElectrolytes are minerals in the body that carry an electric charge and perform vital functions such as regulating fluid balance, acid-base balance, and nerve and muscle activity. The main electrolytes include sodium, potassium, chloride, and magnesium., and urine-specific gravity can reveal early signs of kidney dysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life.. Blood pressure measurement should also be part of routine monitoring, as 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. is a common complication.
Imaging procedures for 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. search include thoracic radiographs every three months in the first year 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. 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. examinations to assess the contralateralThe term "conlateral" appears to be a misspelling. It may refer to "contralateral," which describes the opposite side of the body. In veterinary medicine, it can refer to symptoms or findings that occur on the opposite side of the body. kidney and possible local recurrences. In case of suspected 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. or in high-risk patients, further examinations such as CT or MRI may be indicated.
Nutritional counseling is an important aspect of follow-up care. An individually adapted diet can support the function of the remaining kidney and improve the quality of life. In case of impaired kidney function, a phosphorus- and protein-reduced diet is recommended, supplemented by an adequate fluid intake.
If there are signs of a recurrence or 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 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 must be re-evaluated. In some cases, local treatment procedures such as 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. for isolated 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. or systemic therapies such as 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. or targeted drugs can be considered. 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. care with a focus on pain management and maintaining quality of life is becoming increasingly important in advanced stages.
Prevention
Renal adenocarcinoma cannot be reliably prevented, as the causes are often unclear. Nevertheless, preventive measures can support kidney health and facilitate 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.. Regular check-ups, especially in older dogs, should include blood and urine analyses. A balanced diet, adequate water intake, and avoidance of kidney toxins (e.g., certain medications, poisonous plants) are important. 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. or 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. checks can help to detect changes early in at-risk patients. Owners should pay attention to symptoms such as weight loss, blood in the urine, or increased drinking and have them clarified by a veterinarian immediately.
Outlook on current research
Research on renal adenocarcinoma in dogs is constantly evolving, with several promising directions being pursued. The One Health approach, which uses the parallels between human and canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. tumors, is gaining in importance and promotes the transfer of knowledge between human and veterinary medicine.
In the field of molecular 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., genetic and epigenetic changes underlying canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. renal adenocarcinoma are being intensively researched. Next-generation sequencing technologies enable the identification of driver mutations and molecular signatures that could serve as prognostic markers or therapeutic targets. Comparative genomic studies have already shown remarkable similarities between canine and human renal cell carcinomas, particularly with respect to alterations in the VHL-HIF signaling pathway and in the MET signaling cascade.
In the field of imaging, new techniques are being developed that enable earlier and more 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.. Functional imaging techniques such as dynamic contrast-enhanced MRI or PET-CT with tumor-specific tracers can provide additional information about tumor biology and metabolism. The application of artificial intelligence to the analysis of radiological images promises improved detection and characterization of kidney lesions.
In the field of minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. surgery, advanced laparoscopic and robot-assisted techniques for nephrectomy and partial nephrectomy are being further developed. These procedures aim to reduce surgical traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries., faster recovery times, and improved cosmetic results while maintaining oncological principles.
Immunotherapy represents one of the most promising areas of research. Clinical trials with checkpoint inhibitors such as anti-PD-1/PD-L1 antibodies in dogs with various types of tumors, including renal carcinomas, show encouraging results. New approaches such as CAR-T cell therapies or tumor-specific vaccines are in preclinical development phases and could expand the therapeutic arsenal in the future.
In the field of targeted therapies, new generations of tyrosine kinase inhibitors with improved specificity and reduced toxicityToxicity is the measure of a substance's harmfulness or poisonousness. Toxicity can vary depending on the dose, route of exposure, and individual sensitivity. are being developed. The combination of different targeted agents or their integration into multimodal 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. concepts is also being investigated. Biomarker-guided 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. decisions based on the molecular characterization of individual tumors could pave the way for personalized 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. in veterinary medicine.
Last but not least, the exploration 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. microenvironment is gaining in importance. The interactions between 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, immune cellsImmune cells are specialized cells of the immune system that help to identify and fight pathogens and foreign substances. These include leukocytes such as lymphocytes (T cells and B cells), macrophages, and dendritic cells., and stromal components significantly influence 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, 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., 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. response. A better understanding of these complex interactions could open up new therapeutic strategies that target not primarily 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. cells, but their environment.
These diverse research approaches fuel the hope for improved diagnostic and therapeutic options for dogs with renal adenocarcinoma in the future. The close collaboration between basic researchers, clinical veterinary oncologists, and human physicians will be crucial to drive innovation and ultimately improve 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. of affected patients.
Frequently asked questions (FAQs)
1. What is Renal Adenocarcinoma in Dogs?
A renal adenocarcinoma is a malignant 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 epithelial cellsEpithelial cells are the cells that make up epithelial tissue. They line the outer surfaces of the body, as well as internal cavities, ducts, and organs, and perform functions such as protection, absorption, secretion, and filtration. of the kidney tissue. It can grow locally invasively and spread to other organs. According to Withrow & MacEwen’s Small Animal Clinical 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. (6th edition), kidney tumors are among the rarer cancers in dogs, but require 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..
2. What Symptoms may Indicate Kidney Cancer in Dogs?
Initially, non-specific signs such as decreased appetite, weight loss, and increased thirst often occur. Later, bloody urine (hematuria), fatigue, flank pain, or a palpable 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. in the abdomen may be added. petsvetcheck.de strongly recommends a veterinary examination for these symptoms.
3. How is a Kidney Tumor Diagnosed?
- Blood and urine tests: Checking kidney function and tumor markers.
- 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-ray, CT, or MRI for precise localization 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. and exclusion of 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..
- Tissue sample (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.): 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 to confirm 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..
Standard works such as 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. describe fine needle aspiration as a helpful method if the location allows it.
4. What Treatment Options are Available?
- Surgical removal (nephrectomy): First choice if only one kidney is affected.
- 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.: for advanced cases or high risk of 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..
- Immunotherapy and targeted therapies: Are being increasingly researched.
According to Veterinary Ophthalmology (Gelatt et al.), an interdisciplinary approach is worthwhile if a 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. has already spread to other organ systems.
5. Is Surgery Always Possible?
If 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. is limited to one kidney and the other kidney is healthy, complete removal is often feasible and offers a chance of cure or long-term control. In the case of bilateral changes or already far advanced 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., surgery may be limited or only 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..
6. What is the Prognosis?
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 heavily on 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. If the adenocarcinoma is detected early and can be completely removed, the dog has a good chance of several tumor-free years. In metastasized tumors, 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. worsens significantly. Withrow & MacEwen’s Small Animal Clinical 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. describes a 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 of 6 to 16 months, depending on the 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..
7. Can Kidney Tumors Spread to other Organs?
Yes, renal adenocarcinomas often spread to the lungs, liver, and local lymph nodes. Therefore, regular check-ups (e.g., chest X-rays, 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.) after surgery are essential to detect 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. early.
8. Are Certain Dog Breeds more Frequently Affected?
There is no clearly proven breed preference, but some studies (e.g., in larger breeds such as German Shepherd or Golden Retriever) discuss a possible accumulation. This may be due to genetic factors or a higher probability of examinations in certain breeds.
9. What Follow-Up Measures are Important?
- Regular check-ups: Blood pressure measurement, blood and urine tests, imaging procedures.
- Adapted diet: Special kidney diets relieve the remaining kidney.
- Observation of the general condition: Seek veterinary help early if there are any changes.
On petsvetcheck.de practical advice is given on how to handle dogs after surgery, e.g. calming down, wound care and monitoring the amount of water they drink.
10. What Role Does Nutrition Play in Dogs with Kidney Cancer?
A balanced, kidney-supporting diet can positively influence the organ function of the healthy (or remaining) kidney. Proteins should be provided in an appropriate amount, while excess minerals (especially phosphorusPhosphorus is a vital mineral found in bones and teeth, playing a central role in energy metabolism and DNA. A balanced phosphorus to calcium ratio is essential for the health of dogs and cats.) are reduced. According to Slatter’s Textbook of Small Animal Surgery, an individually adapted diet can improve the quality of life and slow down 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 kidney disease.