Upper alimentary tract papillomas in calves related to papillomavirus infection.

This study reports 3 cases of spontaneous papillomavirus infection in 1-week-old calves. Thickening of the omasum and abomasum wall, with acute inflammation, necrosis, ulceration, and neoplastic changes were seen in 1 calf. In the other 2, small papillomas were observed in the omasal mucosa, exhibiting proliferation of the parakeratinized epithelium. Papillomavirus antigens were detected by immunohistochemistry and virus-like particles were seen through electron microscopy.

[1]  Claude Fauquet,et al.  Classification of papillomaviruses. , 2004, Virology.

[2]  M. Campo,et al.  Extensive papillomatosis of the bovine upper gastrointestinal tract. , 2003, Journal of comparative pathology.

[3]  S. Syrjänen,et al.  Human papillomavirus infections in children: the potential role of maternal transmission. , 2000, Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists.

[4]  B. Smith,et al.  Bracken carcinogens in the human diet. , 1999, Mutation research.

[5]  David R. Smith,et al.  Evaluation of Two Antigen-Capture ELISAs using Polyclonal or Monoclonal Antibodies for the Detection of Bovine Coronavirus , 1996, Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc.

[6]  M. Campo,et al.  Experimental reproduction of the papilloma-carcinoma complex of the alimentary canal in cattle. , 1994, Carcinogenesis.

[7]  T. Baker,et al.  Structures of bovine and human papillomaviruses. Analysis by cryoelectron microscopy and three-dimensional image reconstruction. , 1991, Biophysical journal.

[8]  M. Campo,et al.  A new papillomavirus associated with alimentary cancer in cattle , 1980, Nature.