Mammary hyperplasia in a pregnant queen

Abstract

Mammary hyperplasia producing severe swelling and ulceration of the mammary glands occurred during late gestation in a 10-month-old queen. Inguinal and caudal abdominal mammary glands and the left cranial abdominal mammary gland were asymmetrically and diffusely enlarged. Mammary gland skin was ulcerative and necrotic, and milk was leaking from the affected areas. To prevent mastitis the queen received topical antibacterial and anti-inflammatory drugs and systemic antibacterial and antiprolactin drugs. At the end of the first week following parturition, the majority of the mammary glands had regressed significantly with complete regression 14 days later.