While anal gland/sac cancer (adenocarcinoma) is not common, it is an invasive disease that does not generally have a positive outlook. Usually seen as a rectal growth. An anal gland tumor is not always obvious to the eye as the tumor may be growing inward. If your dog has an anal gland tumor, he may present some or all of these. Anal sacs are paired small pouches located on either side of the anal opening in dogs, cats, ferrets and other animals. The lining of the sacs produces a smelly brown. Anal sac adenocarcinoma is reported to represent 2% of all skin tumors and 17% of perianal tumors in dogs. 1,2 So although it is an uncommon tumor, it is locally. Anal cancer is relatively rare in dogs, but it is nevertheless a serious form of the disease. Anal cancer spreads quickly, and can be difficult to treat.
Anal sacs are paired small pouches located on either side of the anal opening in dogs, cats, ferrets and other animals. The lining of the sacs produces a smelly brown. An overview article on the most common types of dog cancer. Much like the tumors of the anal gland, surgical options are dependent on the location. What is an anal gland tumor? This tumor is a disordered and purposeless overgrowth of cells originating from an anal sac. The tumor is usually rapidly growing, almost.