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Ovarian tumors are quite rare in North American pets, mainly due to routine spaying practices. This handout discusses ovarian tumors in dogs and cats. The various forms of ovarian tumors, clinical signs, diagnosis, treatment, and prognosis of this cancer are outlined.
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Many dogs will instinctively hide their pain as a survival mechanism which in the past, led well-meaning experts to presume that dogs did not feel pain the same way humans do. Although the signs may be subtle, careful observation of a dog’s everyday behaviors will often reveal pain when it is present. These signs may include changes in behavior, mobility, and appetite. Common pain medications include NSAIDs, opioids, and other therapeutics. Your veterinarian will choose the appropriate drugs based on your dog’s specific needs.
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Primary pancreatic tumors are rare in dogs and cats. Exocrine tumors include adenomas and adenocarcinomas, and endocrine tumors include insulinomas, gastrinomas, and glucagonomas. Insulinomas are the most common type of pancreatic tumor, followed by adenocarcinomas. Both tumors are more common in dogs than cats. Large breed dogs and Siamese cats may be predisposed. Insulinomas are usually diagnosed with the finding of hypoglycemia with normal to high insulin on bloodwork and concomitant clinical signs. Adenocarcinomas typically go undetected until the clinical signs of metastasis are evident. For both tumors, diagnostic imaging and exploratory surgery with tumor removal (or biopsy) and histopathology are needed for a definitive diagnosis. Insulinomas can be treated with surgery and chemotherapy. Surgery is possible with adenocarcinomas, but as the cancer is more diffuse and has usually metastasized by the time of diagnosis, the prognosis is poorer. Chemotherapy and radiation therapy are ineffective in the treatment of adenocarcinomas. Given the high rate of metastasis with these tumors, staging is recommended prior to surgery.
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The pancreas is a vital organ that produces enzymes to assist in food digestion and hormones such as insulin, which regulates blood sugar or glucose metabolism. Pancreatitis is inflammation of the pancreas. Common clinical signs include decreased appetite, nausea, vomiting, lethargy, diarrhea, and abdominal pain. Diagnosis is generally made with laboratory testing and/or abdominal ultrasound. Successful pancreatitis management will depend on early diagnosis and prompt medical therapy. The prognosis depends on the severity of the disease and the response to initial therapy.
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Pancreas-specific lipase is a form of lipase produced only in the pancreas and is highly specific to the pancreas. Blood values increase only when there is pancreatic inflammation. A version of the cPLI test can now be used in-clinic (SNAP fPL© from IDEXX). Ideally, the sample should also be sent to the laboratory to get an actual value of cPLI to help with treatment and monitoring.
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Panniculitis is usually visible as a lump, but it is actually an inflammation of the subcutaneous fatty tissue. In younger animals with a single lump, the cause is often blunt trauma. In cats, many cases are due to bite wounds from fighting. Other less common causes include infections, immunological reactions, steroid treatment, diseases of internal organs (e.g., pancreas or liver), poor nutrition, and diseases that affect the blood supply. Panniculitis is diagnosed by fine needle aspiration, biopsy, or full excision. The most common treatment is surgical removal of the lump. Antibiotic therapy may also be required for secondary infection. The goal is to find, treat, and/or remove any underlying cause or trigger of the panniculitis.
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Papillomas are benign, sometimes multiple, tumors caused by viruses. They are commonly known as warts. The virus is transmitted through direct contact from an infected pet or the pet’s environment (e.g., toys, food bowls, or bedding) and gain access to the body when the skin becomes softened by moisture, through cuts and abrasions, or with the assistance of insects. Pets with immature immune systems such as young dogs and puppies, and those that are immune compromised, are more prone to developing papilloma tumors. The tumors often disappear within 1-2 months because the animal slowly develops an immunity to them. However, sometimes they persist, and surgical removal is necessary.
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With its big fringed ears flowing in the breeze like pretty wings, it is easy to see why the Papillon is named after a butterfly, but the Pap also has the lightness, grace, and delicate beauty of its winged namesake.
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The Parson Russell Terrier, or PRT, epitomizes feistiness. He is confident, fearless, alert, and happy. His liveliness can be a lot of fun in an active household with experienced dog owners.
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Parvovirus may affect dogs of all ages but is most common in unvaccinated dogs less than one year of age. Young puppies under five months of age are usually the most severely affected and difficult to treat. Clinical signs can vary but generally include severe vomiting and diarrhea; the diarrhea often has a powerful smell, may contain lots of mucus, and may or may not contain blood. Most dogs with CPV infection recover if aggressive treatment is used and if therapy is started before severe septicemia and dehydration occur.
