Five cases of feline mammary fibroepithelial hyperplasia are described. Affected cats were all females with ages varying from 10 months to 11 years. The main complaint on presentation was swollen mammary glands with clinical courses of 3-24 weeks. In two of the cats the condition developed after treatment with contraceptive. Grossly, the mammary masses were covered by skin ocasionally ulcerated and had white cut surfaces with multifocal paler nodules of 2mm in diameter. Histologically, these multifocal nodules consisted of ductal proliferation surrounded by extensive fibrobalstic growth.
diseases of cats; mammary gland; fibroepithelial hyperplasia; total fibroadenomatous change; mammary gland hypertrophy; fibroadenoma
