Difference between revisions of "Bovine Papillomaviruses"

From WikiVet English
Jump to navigation Jump to search
Line 20: Line 20:
 
[[Category:Papomaviridae]][[Category:Cattle Viruses]][[Category:Forestomach - Proliferative Pathology]]
 
[[Category:Papomaviridae]][[Category:Cattle Viruses]][[Category:Forestomach - Proliferative Pathology]]
 
[[Category:Respiratory System - Hyperplastic/Neoplastic Pathology]]
 
[[Category:Respiratory System - Hyperplastic/Neoplastic Pathology]]
[[Category:To_Do_-_Clinical/Viruses]]
+
[[Category:To_Do_-_Kate]]
[[Category:To_Do_-_Clinical]]
 

Revision as of 09:58, 4 March 2011

  • 2 groups:
  1. Fibropapillomas: viral DNA sequences, but no virus found
  2. Epithelial Papillomas: virus found
  • Calves most commonly affected
  • Usually resolves spontaneously
  • Can undergo malignant transformation to alimentary carcinomas
    • Usually concurrent with grazing bracken (co-carcinogen) and ingesting quercetin (immunosuppressant)
  • Can cause squamous cell carcinoma of the eye in Hereford cattle, where UV light acts as the co-carcinogen

Papillomatosis

  • Caused by Bovine Papillomaviruses|bovine papilloma virus-4.
  • Usually affects pedunculated structures in reticulum/rumen of cattle.


Viral papillomas

in the pharynx