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.
References
1.
LaffolayB.:
Les tumours de la mamelle chez les herbivores; thesis,
Alfort
(1946);
cited Vet. Bull. Weybridge 20: Abstract 427 (1950)
2.
RitterH.B.OlesonJ.J.:
Combined histochemical staining of acid polysaccharides and 1,2-glycol groupings in paraffin sections of rat tissue.Amer. J. Path.26:
639–645
(1950)
