Feline Mammary Gland Tumors.
Jul 26, 2018
Mammary tumors are the third most common tumor type seen in the cat, and they account for approximately 20% of cancer in the female cat. These tumors arise from the mammary (breast) tissue and are typically malignant (invasive with a high chance of spreading). Most mammary tumors in cats are classified as adenocarcinomas. About 85% of mammary tumors in cats are malignant; meaning they are very invasive to the surrounding tissues and have a high rate of spreading to other areas of the body. Mammary cancer is often a disease of middle aged to older cats, with Siamese cats having a higher risk.