Prostate Adenocarcinoma (Prostate Cancer) in Dogs
- Occurrence: rarer
- Location of disease: Abdomen/pelvis
When to visit the vet?
Non-urgent see a veterinarian within 2–3 days
If the condition worsens / symptoms persist, consult a veterinarian.
Definition
Prostate 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 develops from the glandular cells of the dog’s prostate gland. This form of prostate 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 characterized by aggressive growth and a high tendency to metastasize. Unlike humans, where prostate 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 most common Tumors, prostate adenocarcinoma is relatively rare in dogs. It accounts for approximately 0.2–0.6% of all canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. malignancies. Nevertheless, this disease is of considerable clinical importance due to its poor Prognose 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..
The most important facts at a glance
Prostatic 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. that primarily affects older male dogs. Unlike benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostate diseases, it occurs in both castrated/neutered and unneutered animals, with some studies even suggesting an increased risk for castrated/neutered male dogs. The exact causes are not fully understood, but genetic predispositions, hormonal factors, and environmental influences are discussed.
The clinical symptomatologySymptomatology refers to the entirety of symptoms associated with a particular disease or condition. It describes how a disease manifests itself externally. usually develops insidiously and mainly includes urinary and fecal eliminationElimination refers to the process by which waste products and toxins are removed from the body. This includes excretion via the kidneys (urine), intestines (stool), lungs (breath), and skin. disorders, hematuria, and nonspecific symptoms such as weight loss and reduced performance. In advanced disease, neurological deficits can occur due to 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 spine. 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. requires a combination of clinical examination, diagnostic imagingDiagnostic imaging includes medical procedures that create images of the inside of the body to diagnose, monitor, or treat diseases and injuries. Examples include X-ray, ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI)., 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. confirmation. Early 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. screening is particularly important, as 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. are often already present at the time of 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 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 that may include surgical procedures, 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., 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 targeted therapies. Despite therapeutic advances, 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. remains unfavorable, 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 6 to 12 months with optimal 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.. Follow-up care focuses on regular check-ups, pain management, and maintaining quality of life.
Research in this area is continuously evolving, with promising approaches in 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., immunotherapy, and molecular diagnostics. A better understanding 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. biology and the development of new therapeutic strategies could lead to improved treatment outcomes in the future.
Causes
The dog’s prostate is an unpaired, chestnut-shaped organ that surrounds the urethra and is located caudalCaudal refers to a position closer to the tail or posterior end of the body. In human medicine, the term is used to indicate the direction "downward" in relation to the body's longitudinal axis. to the bladder in the pelvic canal. It produces part of the seminal fluid and thus plays an important role in reproduction. The adenocarcinoma can develop in various areas of the prostate and typically spreads both locally invasively and via 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 body.
It is noteworthy that, in contrast to benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostate diseases such as benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostatic hyperplasiaHyperplasia refers to an increase in the number of cells in a tissue or organ, leading to enlargement. This can be a normal reaction or a sign of a disease., which occurs predominantly in intact male dogs, adenocarcinoma can occur in both neutered and unneutered dogs. In fact, there is evidence that neutered male dogs may even have an increased risk of developing this type 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., although the underlying mechanisms are not yet fully understood.
The exact causes of prostate 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 are unknown. Hormonal factors, genetic predispositions, and environmental factors may play a role.
- Hormonal influences: HormoneHormones are chemical messengers produced by endocrine glands and released into the bloodstream to affect specific cells or organs in the body. They regulate numerous bodily functions, including growth, metabolism, and reproduction. status (testosterone) plays a crucial role in prostate health. Studies suggest that both intact and neutered male dogs can develop prostate 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., although the situation is complex and other 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.: Certain breeds (e.g., Golden Retrievers, German Shepherds) occasionally show clustering, but clear genetic markers are still being researched.
- Environmental factors: Exposition to environmental toxins 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. Inflammatory conditions can increase the risk.
It is noteworthy that, in contrast to benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostate diseases such as benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostatic hyperplasiaHyperplasia refers to an increase in the number of cells in a tissue or organ, leading to enlargement. This can be a normal reaction or a sign of a disease., which occurs predominantly in intact male dogs, adenocarcinoma can occur in both neutered and unneutered dogs. In fact, there is evidence that neutered male dogs may even have an increased risk of developing this type 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., although the underlying mechanisms are not yet fully understood.
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 prostate adenocarcinoma in dogs has not been fully clarified to date. In contrast to humans, where age, genetic factors, and hormonal influences are considered the main risk factors, the pathogenesisPathogenesis describes the process of the origin and development of a disease, including the mechanisms that lead to the disease's symptoms and signs. in dogs appears to be more complex. The following factors are being discussed in current research:
Hormonal influences play a crucial, albeit paradoxical, role. While testosterone has a promoting effect in benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostate diseases such as benignBenign refers to a non-invasive, non-serious condition that is not life-threatening. In medicine, the term is often used to describe benign tumors that do not metastasize, meaning they do not form secondary tumors. prostatic hyperplasiaHyperplasia refers to an increase in the number of cells in a tissue or organ, leading to enlargement. This can be a normal reaction or a sign of a disease., adenocarcinoma appears to develop partially independently of androgen status. Recent studies show that neutered male dogs may have up to four times the risk of developing prostate 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. than intact animals. This suggests that the eliminationElimination refers to the process by which waste products and toxins are removed from the body. This includes excretion via the kidneys (urine), intestines (stool), lungs (breath), and skin. of androgens may impair protective mechanisms or that other hormonal factors come to the fore.
Genetic predispositions are being increasingly researched. Certain dog breeds such as Dobermans, Scottish Terriers, Airedale Terriers, and medium to large mixed breeds appear to be more frequently affected. Molecular genetic studies have identified changes in various genes that may be associated with the development of prostate carcinomas, including mutations in the BRCA2 gene and overexpression of the COX-2 enzyme.
Environmental factors 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. inflammatory processes are being discussed as potential risk factors. Similar to humans, Exposition to certain environmental toxins, heavy metals, or persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. organic pollutants could contribute to carcinogenesis. 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. prostatitis could 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 via inflammation-related 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 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..
Age is another important factor, as prostate 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. predominantly occurs in older dogs. The average age of onset is around 10 years, with a range from 6 to 17 years.
Symptoms
The clinical signs of prostate adenocarcinoma in dogs usually develop insidiously and are often only noticed in advanced stages of the disease. This contributes significantly to the unfavorable Prognose, as 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. are often already present at the time of 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 symptomatologySymptomatology refers to the entirety of symptoms associated with a particular disease or condition. It describes how a disease manifests itself externally. results both from the local spread 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 from 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..
The characteristic Symptoms: include disorders of Urinary urgency and bowel movement function. The enlargement of the prostate and the 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 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. can lead to compression or infiltrationInfiltration refers to the penetration or accumulation of cells or fluids in a tissue or area that is normally free of them. This can occur as part of inflammatory reactions, Tumors, or other pathological processes. of the urethra, which leads to dysuria (difficult Urinary urgency), stranguria (painful Urinary urgency with pressing), or pollakisuria (frequent Urinary urgency with small amounts of urine). In advanced cases, complete urethral 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. with urinary retention can occur, which is a life-threatening emergency.
Similarly, compression of the rectum can lead to tenesmus (painful pressing during bowel movement) and 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.. Affected dogs often show a characteristic posture with a curved back and splayed hind legs during Urinary urgency or bowel movement.
Hematuria (blood in the urine) is another common symptom that can be caused by 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. invasion into the urethra or bladder. Occasionally, hemospermia (blood in the ejaculate) also occurs, but is rarely noticed by owners.
Systemic Symptoms: include 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, inappetence, lethargy, and general performance reduction. These non-specific signs are often an expression of advanced 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 and can indicate 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..
If there is 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. to the lumbar spine or pelvis, neurological deficits such as hind limb weakness, Lameness, or paresisParesis is a partial or incomplete paralysis that manifests as a weakening of muscle strength. It can affect individual muscles or muscle groups and is often caused by damage to the nervous system. can occur. Lung 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. can lead to 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. (shortness of breath) and cough. Lymph node 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. can be noticeable as enlarged, palpable structures in 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. or pelvic region.
Pain manifests as behavioral changes, reluctance to move, or vocalizations during urination or defecation. Pain assessment is an important aspect of clinical management and should be performed regularly.
Diagnosis
- Clinical Symptoms: Difficulties with bowel and Urinary urgency, blood in the urine, Weight loss, and reduced performance. Spinal pain is also possible, as prostate Tumors often metastasize in the area of the lumbar vertebrae.
- 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.: 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. palpatory assessment of prostate size and shape.
- 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. (especially thorax 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) and 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./MRI for an accurate representation of the tumor 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..
- fine-needle aspirationFine-needle aspiration is a minimally invasive diagnostic technique that uses a thin needle to extract cells or fluid from a tumor, lesion, or organ. This sample is then examined microscopically to make a diagnosis./biopsy: 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 for the reliable 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 adenocarcinoma. Molecular tests (e.g., analysis of specific receptors or gene mutations) are under investigation.
The diagnosis of prostate adenocarcinoma requires a systematic approach and combines clinical examination, imaging procedures, 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. confirmation. 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 therapeutic management and Prognose assessment.
The clinical examination begins with a thorough medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits., paying particular attention to changes in Urinary urgency and bowel movement behavior as well as systemic Symptoms:. RectalRectal refers to anything involving the rectum, including administering medication or performing examinations via the anus. 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. allows an 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. assessment of the prostate size, shape, and consistency. Typically, the prostate affected by adenocarcinoma feels asymmetrical, irregularly limited, and hardened. The pain reaction during 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 vary.
Imaging techniques play 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. sonography / ultrasoundSonography / ultrasound, also called ultrasound examination, is an imaging technique that uses sound waves to create images of the inside of the body. It is used for diagnostic purposes in veterinary medicine, including the examination of soft tissue structures. allows a detailed representation of the prostate structure and can provide information on size changes, inhomogeneities, calcifications, or infiltrationInfiltration refers to the penetration or accumulation of cells or fluids in a tissue or area that is normally free of them. This can occur as part of inflammatory reactions, Tumors, or other pathological processes. into surrounding structures. 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..
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. images of the thorax are necessary 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, as the lung is a common site 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.. 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. 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. images can show prostate calcifications or displacement of neighboring organs.
Advanced imaging procedures such as 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. and 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. offer a superior level of detail and are particularly valuable for assessing 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, lymph node involvement, 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.. They are also 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, especially if surgical intervention or 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. is being considered.
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 of the prostate tissue. This can be done by fine-needle aspirationFine-needle aspiration is a minimally invasive diagnostic technique that uses a thin needle to extract cells or fluid from a tumor, lesion, or organ. This sample is then examined microscopically to make a diagnosis., Tru-Cut-biopsy, or surgical 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.. The fine-needle aspirationFine-needle aspiration is a minimally invasive diagnostic technique that uses a thin needle to extract cells or fluid from a tumor, lesion, or organ. This sample is then examined microscopically to make a diagnosis. 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 offers less diagnostic certainty than tissue samples. The cytological examination typically shows cell clusters with clear 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. criteria such as anisocytosis, anisokaryosis, prominent nucleoli, and increased mitotic activity.
Supplementary examinations include blood and urine analyses. Blood tests can provide information on paraneoplastic syndromes, Inflammatory conditions, or organ 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.. The urine examination can detect hematuria, pyuria, or secondary urinary tract infections. A bacteriological urine culture is indicated if a concomitant infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. is suspected.
Molecular and immunohistochemical investigations are becoming increasingly important. Markers such as Ki-67, PCNA, or p53 can provide information about the proliferation rate and the biological behavior 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.. In addition, specific receptors such as androgen or estrogenEstrogen is a group of steroid hormones that are primarily responsible in female animals for regulating the reproductive system and developing female characteristics. In dogs and cats, estrogens play an important role in the estrous cycle. receptors can be analyzed, which has potential therapeutic implications.
Therapy
- Surgical approaches: A radical prostatectomy can be considered, but is technically demanding and associated with functional risks (incontinenceIncontinence refers to the inability to voluntarily control urine or stool, leading to involuntary loss. There are various forms, including urinary incontinence and fecal incontinence, which can be caused by different factors., fistulaA fistula is an unnatural channel or connection between two organs, or between an organ and the body's surface, that can arise from disease, injury, or surgical procedures. In dogs and cats, fistulas can be a cause for concern and may require treatment. formation).
- 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 palliatively or curatively, often in combination with other procedures.
- 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 targeted therapies: Certain protocols (e.g., based on doxorubicin or carboplatin) are used, the effectiveness of which varies. Newer studies on tyrosine kinase inhibitors or immune checkpoint inhibitors are promising, but are still in early stages.
- Hormones and castration / neuteringCastration / neutering is the process of removing the gonads (ovaries in females, testicles in males), which prevents reproduction and the production of certain sex hormones. This can be done for medical or other reasons.: Castration / neuteringCastration / neutering is the process of removing the gonads (ovaries in females, testicles in males), which prevents reproduction and the production of certain sex hormones. This can be done for medical or other reasons. alone does not appear to reliably prevent the development of adenocarcinoma, but can be useful for benign prostate changes (e.g., hyperplasiaHyperplasia refers to an increase in the number of cells in a tissue or organ, leading to enlargement. This can be a normal reaction or a sign of a disease.).
The treatment of prostate adenocarcinoma in dogs poses a therapeutic challenge and usually requires a multimodal approach. The choice 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. depends on the tumor stage, the patient’s general condition, and the available resources. Despite various treatment options, the Prognose remains unfavorable overall.
Surgical interventions include various procedures, of which total prostatectomy is the most radical approach. This operation is technically demanding and associated with significant potential complications, including Urinary urgency, urethral strictures or fistulaA fistula is an unnatural channel or connection between two organs, or between an organ and the body's surface, that can arise from disease, injury, or surgical procedures. In dogs and cats, fistulas can be a cause for concern and may require treatment. formation. Newer, less 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 partial prostatectomy or intracapsular prostatectomy are being explored to reduce the complication rate. Surgical 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 often combined with adjuvant treatments to combat microscopic tumor residues.
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. has established itself as a valuable treatment option, especially for non-resectable Tumors or as 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. 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) or stereotactic radiosurgery enable more precise Bestrahlung of the tumor while sparing the surrounding tissue. Typical protocols include total doses of 45 to 54 Gy, divided into multipleMultiple means manifold or repeated and is used to describe conditions or events that occur in multiple instances or at different locations. In veterinary medicine, this may indicate multiple lesions, tumors, or other pathological changes. fractions. AcuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. side effects can include cystitis, colitisColitis is an inflammation of the large intestine (colon). Symptoms can include diarrhea, abdominal pain, and blood in the stool. Colitis can be caused by infections, chronic inflammatory bowel diseases such as ulcerative colitis and Crohn's disease, or other causes., or dermatitis in the Bestrahlung field.
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 frequently used as a systemic treatment, especially in metastatic disease. Various protocols based on doxorubicin, carboplatin, cisplatin, or mitoxantrone have shown some effectiveness. However, response rates vary greatly, and the remission duration is often limited. Newer studies are investigating the effectiveness of metronomic 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., in which lower doses are administered continuously, which can lead to an antiangiogenic effect.
Targeted therapies are becoming increasingly important. Tyrosine kinase inhibitors such as toceranib (Palladia®) or masitinib have shown promising results in preclinical and first clinical studies. These substances 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 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.. COX-2 inhibitors such as piroxicam or firocoxib are also used due to their antitumoral and anti-inflammatory properties.
Immunotherapeutic approaches are under development. Checkpoint inhibitors, which are already established in human medicine, are also being investigated in veterinary medicine. These substances reactivate 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 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. studies with monoclonal antibodies against PD-1/PD-L1 or CTLA-4 show encouraging results in various canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Tumors, including prostate carcinomas.
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. measures are 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. They aim to improve the quality of life and alleviate Symptoms:. This includes pain therapy / analgesic therapyPain therapy / analgesic therapy includes methods and medications to relieve Pain in animals. The goal is to improve well-being and increase the quality of life of animals with acute or chronic Pain. with NSAIDsNSAID (non-steroidal anti-inflammatory drug) stands for non-steroidal anti-inflammatory drugs, a class of medications used to relieve pain, reduce inflammatory conditions, and lower fever without using steroidal agents. They are a commonly used pain reliever in veterinary medicine., opioids, or adjuvant analgesics, ensuring Urinary urgency through catheterization or stent implantation, 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 such as fluid 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., nutritional management, and physiotherapeutic support.
Prognosis and follow-up care
The Prognose for dogs with prostate 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 generally poor, as the disease is often already advanced at the time of 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.. Treatment strategies aim to improve the quality of life and slow 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.
- 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: Early detection is essential for the Prognose, as prostate 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. can quickly metastasize to the lungs, lymph nodes, or bones.
- Quality of life: Symptoms: can often be alleviated with comprehensive therapy (operation, possibly 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./chemotherapy). Nevertheless, prostate adenocarcinoma remains a serious diagnosis.
- Long-term survival: Depending on the aggressiveness and 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., survival ranges from a few months to over a year. An interdisciplinary approach (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., surgery, pain management) improves the quality of life.
Aftercare
- Regular check-ups: Examinations of prostate size, blood and urine analyses, and imaging procedures (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./ultrasound/computed tomography (CT)) are advisable at intervals of 3 to 6 months.
- Symptom-oriented management: pain therapy / analgesic therapyPain therapy / analgesic therapy includes methods and medications to relieve Pain in animals. The goal is to improve well-being and increase the quality of life of animals with acute or chronic Pain., stabilization of Urinary urgency and bowel movements (possibly soft food, stool regulation).
The Prognose for dogs with prostate adenocarcinoma is generally unfavorable, mainly due to the 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. and the high 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. rate. Various prognostic factors influence the course of the disease and survival time.
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 at the time of 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 the most important prognostic factor. Dogs with localized disease have a better Prognose than those with regional lymph node involvement or 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.. Unfortunately, approximately 40–80% of prostate adenocarcinomas are only diagnosed in the metastatic stage, which limits the therapeutic options. The most common sites 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. are the lungs, regional lymph nodes, liver, bones (especially the lumbar spine and pelvis), and kidneys.
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. features such as the degree of differentiation, mitotic rate, and invasiveness 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. correlate with the Prognose. Highly undifferentiated Tumors with high mitotic activity typically show a more aggressive biological behavior and are associated with shorter survival times.
The 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 time after 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. varies depending on the therapy and 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. Without specific treatment, it is approximately 1–3 months. With multimodal therapy approaches, the survival time can be extended to 6–12 months, with individual patients also achieving longer survival times. After total prostatectomy, median survival times of 3 to 14 months are reported, while 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 lead to median survival times of 5 to 12 months.
Aftercare plays a crucial role in the management of dogs with prostate adenocarcinoma. Regular check-ups should be carried out at intervals of 1 to 3 months, depending on the patient’s clinical condition and the chosen 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.. These examinations include:
Clinical evaluation with particular attention to Urinary urgency and bowel movement behavior, pain assessment, and neurological status. The quality of life should be systematically recorded, for example using validated questionnaires or scoring systems.
Imaging procedures to assess the 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. and for the early detection of 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.. Thorax 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., 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. sonography / ultrasoundSonography / ultrasound, also called ultrasound examination, is an imaging technique that uses sound waves to create images of the inside of the body. It is used for diagnostic purposes in veterinary medicine, including the examination of soft tissue structures., and, if necessary, 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./MRI examinations should be performed at regular intervals.
Laboratory tests including 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 to monitor organ function and to detect possible 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. side effects.
Pain management is a central aspect of aftercare. The analgesicAn analgesic is a medication used to relieve Pain without affecting the patient's level of consciousness. 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. should be evaluated regularly and adjusted if necessary. A multimodal approach with NSAIDsNSAID (non-steroidal anti-inflammatory drug) stands for non-steroidal anti-inflammatory drugs, a class of medications used to relieve pain, reduce inflammatory conditions, and lower fever without using steroidal agents. They are a commonly used pain reliever in veterinary medicine., opioids, gabapentinoids, and local anesthetics may be necessary, especially in patients with 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..
Supporting the owners through detailed education, psychologicalPsychological refers to anything related to the mind or behavior. In veterinary medicine, this can include the study of animal behavior, including stress responses and behavioral disorders. support, and practical assistance with home care is also important. The decision to euthanize may be necessary in advanced stages of the disease and should be made in close consultation with the owners, with the animal’s quality of life being the priority.
Prevention
There is no guaranteed method for the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of prostate adenocarcinoma in dogs; however, castration/neutering reduces the risk of other prostate diseases, thereby indirectly facilitating early detection. From middle age onwards, male dogs should be examined rectally regularly to detect changes early. Symptoms such as difficulty passing stool or urine, blood in the urine, or lameness in the hindquarters must be taken seriously. A healthy diet, normal body weight, and sufficient exercise promote general health. Genetic predispositions should be considered in breeding selection. Early veterinary check-ups are the most important preventive approach.
Outlook on current research
Research on prostate adenocarcinoma in dogs has made significant progress in recent years, opening up new diagnostic and therapeutic perspectives. Current research focuses on molecular characterization, innovative therapy approaches, and translational aspects.
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 that contribute to the development 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 canine prostate 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. are increasingly being identified. Genome-wide sequencing studies have revealed specific mutations and chromosomal aberrations that could represent potential therapeutic targets. Changes in genes such as PTEN, TP53, and BRCA1/2, which also play a role in human prostate carcinoma, are of particular interest. The identification of specific molecular subtypes could enable more precise prognosis and individualized therapy planning in the future.
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. methods are being intensively researched to develop non-invasive diagnostic and monitoring options. The analysis of circulating tumor cells, cell-free 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., or exosomes in the blood 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 recurrence 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.. 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 show promising results in the detection of tumor-specific biomarkers in the blood of dogs with prostate 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 the field of imaging, new techniques such as molecular imaging with tumor-specific tracers are being developed. PET-CT scans with radiotracers such as 18F-FDG or more specific markers could improve the sensitivity and specificity 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. 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 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. screening.
Innovative 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. approaches are the focus of numerous clinical trials. Immunotherapy with checkpoint inhibitors such as anti-PD-1/PD-L1 antibodies shows 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 in various canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. tumors. Specifically for prostate 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., combinations of immunotherapy and conventional treatments are being evaluated to exploit synergistic effects.
Targeted therapies are being increasingly refined. In addition to established tyrosine kinase inhibitors, new substances are being developed that specifically target molecular changes in prostate carcinoma. PARP inhibitors, which are particularly effective in BRCA-mutated tumors, are being tested in preclinical models.
Local ablation procedures such as high-intensity focused 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. (HIFU), cryotherapy, or 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. are being evaluated as minimally invasive alternatives to surgical resection. These techniques could be particularly relevant for patients with localized disease and increased surgical risk.
Translational research approaches are becoming increasingly important. CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. prostate 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. has remarkable similarities to aggressive, androgen-independent prostate 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 and could therefore serve as a natural model for this difficult-to-treat disease. Comparative studies that examine molecular and clinical aspects in dogs and humans in parallel could lead to new insights for both species.
The integration of artificial intelligence and machine learning into 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. planning represents another promising area of research. Algorithms for analyzing 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. images or predicting 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 are being developed and could support clinical decision-making in the future.
Despite these promising developments, challenges remain. The rarity of the disease makes it difficult to conduct large clinical trials, and the transferability of preclinical results into clinical practice must be carefully evaluated. Multicenter collaborations and the establishment of biobanks and registries could help to overcome these hurdles and accelerate progress in research 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..