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An anal sac adenocarcinoma is an uncommon and aggressive malignant tumor found in dogs that arises from the apocrine glandular tissue of anal sac. The disease exists in cats as well, but is much less common in that species. [1] They are the second most common cancerous cause of hypercalcaemia (high serum calcium) in dogs, following T-cell ...
These tumors can develop on the skin, subcutaneously, or on a blood vessel within an organ and are highly malignant. The tumors are most fatal when they rupture, causing the dog to suffer from severe loss of blood, or hypovolemia. [6] Dogs are one of three mammalian species that are known to suffer from a transmissible cancer. [7]
Pituitary gland tumors are very common in the canine. A productive form arising from the anterior pituitary is the primary cause of Cushing's disease of dogs. This tumor causes excessive production of cortisol from the adrenal cortex which leads to the classic signs of alopecia (hair loss), polyuria (excessive urination), polydipsia (excessive water drinking), and a pot-bellied appearance of ...
Canine cancer detection is an approach to cancer screening that relies upon the claimed olfactory ability of dogs to detect, in urine or in breath, very low concentrations of the alkanes and aromatic compounds generated by malignant tumors. While some research has been promising, no verified studies by secondary research groups have ...
CT is the best diagnostic modality: [25] a confluent mass surrounding the aorta [6] and common iliac arteries can be seen. On MRI, it has low T1 signal intensity and variable T2 signal. Malignant retroperitoneal fibrosis usually gives uneven MRI signals, is bulky, extends above the origins of renal arteries, or displaces the aorta anteriorly.
A perianal gland tumor is a type of tumor found near the anus in dogs that arises from specialized glandular tissue found in the perineum. [1] It is also known as a hepatoid tumor because of the similarity in cell shape to hepatocytes (liver cells). It is most commonly seen in intact dogs and is the third most common tumor type in intact male ...
Liver cancer* is usually metastatic in dogs. Primary tumors are and include benign hepatocellular adenoma (hepatoma) and malignant hepatic carcinoids. [165] Brain tumors [168] * can be either metastatic or primary in dogs. The incidence of primary tumors is 14.5 per 100,000 dogs at risk.
Retroperitoneal bleeding is an accumulation of blood in the retroperitoneal space. Signs and symptoms may include abdominal or upper leg pain , hematuria , and shock . It can be caused by major trauma or by non-traumatic mechanisms.