Large animal cutaneous neoplasia

Papillomatosis

Presentation

Papillomatosis (warts) can occur in horses (generally on the muzzle) but is more frequent in cattle (head, teats and penis). It is caused by a papilloma virus and immunity occurs with age. Transmission is via animal-animal contact, often through abrasions.

 

Treatment

Warts are usually self-limiting. Pinching one off may stimulate regression of the others. Penile papillomas may need treatment (debulking) if hemospermia or problems with penile retraction are noted. Just be careful to not cause more issues by  removing penile tissue along with the tumor.

Key Takeaways

Warts are caused by the papilloma virus. Young animals are affected and develop immunity with age.

  • No treatment is required for muzzle lesions.
  • Penile fibropapilloma looks aggressive and also resolves; debulking can help with secondary issues.

Resources

Surgical Procedures of the Genital Organs of Bulls VCNA Vol.32(3), pp.701-725, 2016

License

Icon for the Creative Commons Attribution-NonCommercial 4.0 International License

Large Animal Surgery - Supplemental Notes by Erin Malone, DVM, PhD; Elaine Norton, DVM PhD; Erica Dobbs, DVM; and Ashley Ezzo, DVM is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.