title: Papillomatosis of the bovine teat (mammary papilla).
abstract: A 4th of 667 cattle examined at a Wisconsin abattoir had teat papillomas. Excised teat papillomas were sorted by gross morphologic characteristics into 3 groups: (i) atypical filiform, (ii) atypical flat, and (iii) typical fibropapilloma. Bovine papilloma virus capsid antigen was detected in thin-section slides of the 3 groups of teat papillomas by peroxidase-antiperoxidase assay. The bovine papilloma virus involved with the atypical papillomas could not be characterized by molecular hybridization, because enough pure virus could not be harvested. Homogenates of the 3 groups of teat papillomas were inoculated on 2 ponies and 4 calves. Typical fibropapillomas were produced on the 4 calves, and fibromas, on the 2 ponies. Atypical papillomas were produced only in 2 heifers.
mesh_terms: D000003:Abattoirs; D000818:Animals; D000956:Antigens, Viral / Q000032:analysis; D052688:Bovine papillomavirus 1 / Q000276:immunology; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D005260:Female; D007124:Immunoenzyme Techniques; D008321:Mammary Glands, Animal; D009369:Neoplasms / Q000662:veterinary*; D010212:Papilloma / Q000453:epidemiology / Q000662:veterinary*; D014922:Wisconsin
chemical_list: D000956:Antigens, Viral