Canine Mammary Gland Tumors
Jul 26, 2018
Mammary tumors (breast cancers) are the most commonly diagnosed tumor in intact female dogs older than 7 years of age. Male dogs can also develop mammary tumors, but rarely. Several breeds are prone to developing mammary cancer including Poodles, English Spaniels, English Setters, and Terriers. About 50% of mammary tumors are malignant (invasive to surrounding tissue with a high risk of spreading) and 50% are benign—this is very similar to the statistics for breast cancer in women.