Early detection and aggressive treatment are essential in the successful management of this tumor. Hypercalcemia of malignancy is seen in some cases as a paraneoplastic syndrome and may contribute to presenting clinical signs. Early detection and aggressive treatment are essential in the successful management of this tumor, which emphasizes the importance of a rectal examination as part of a routine physical examination in all animals. Treatment typically requires a multimodal approach involving surgery, radiation, and, potentially, chemotherapy. Anal sac adenocarcinoma occurs primarily in older dogs, with an average age of Owners or groomers may be the first to notice perineal swelling or discomfort.
Identifying and treating anal sac adenocarcinoma in dogs
Anal Gland Adenocarcinoma — Animal Cancer and Imaging Center
The anal sacs are a pair of scent glands located along each side of the anus. Dogs and cats can function normally without these scent glands. Cancer can develop in the anal sac glands in dogs, but rarely in cats. In most cases, this tumor affects only one anal sac, but occasionally both left and right sacs are affected. Anal sac cancer is usually malignant and has a high tendency to spread to the other body parts. If it spreads, regional lymph nodes and the liver are commonly affected; but, the cancerous tumor can also spread to the lungs. Other signs may include a large visible swelling of the anal region, straining during bowel movements, thin ribbon-shaped stools, difficulty passing urine and arching of the back.
Canine Anal Sac/Gland Adenocarcinoma
Are you sure you wish to cancel your assignment to report on this case — all inputted data will be lost! This site is optimised for modern web browsers, and does not fully support your version of Internet Explorer, some sections of the website may not work correctly such as web forms. The anal sacs are two small glands that sit either side of the anus back passage under the tail. They produce a strong-smelling secretion which is emptied onto the faeces stools.
The most common malignant tumor of the perianal region is the anal sac gland carcinoma accounting for These tumors are locally invasive and metastasize early in the course of the disease. There does not appear to be a breed or sex predilection for this tumor and no consistent causative factors have been noted. In many cases, these tumors are noted as an incidental finding on a routine rectal examination and can range in size from very small to very large before clinical signs occur. In dogs with clinical signs, perianal swelling, straining to defecate, licking the perianal region, and bleeding, were most commonly seen and resulted from a large anal sac tumor or severely enlarged regional lymph nodes pressing on the colon.