Mammary Intraductal Carcinoma in Goats ( Capra hircus)

Three intraductal carcinomas were found in the mammary glands of 220 goats. The affected glands were indurated and had multiple grey-white dots resembling areas of suppuration on their cut surfaces. The growths were multicentric and had diffuse intraluminal proliferation of cells, giving laciform, cribriform or solid appearance to the epithelium. In one, the neoplastic cells were invasive, having overcome the myoepithelial basement membrane complex, and had metastasised to the regional lymph node.