The Facts

  • Squamous cell carcinomas have been recognized in all domestic animals.
  • Most of these tumors originate without cause in a broad range of species, and prolonged exposure to sunlight has been determined as a major predisposing factor.

Cats and Squamous Cell Carcinoma

  • A unique form of feline squamous cell carcinoma is associated with papilloma virus infection.

Dogs and Squamous Cell Carcinoma

  • These tumors are the most frequently diagnosed carcinomas arising in the skin of canines.
  • Two forms are recognized; cutaneous squamous cell carcinomas are tumors of older dogs, with Bloodhounds, Basset Hounds, and Standard Poodles at greatest risk.
  • The lesions may appear in areas like the head, paws, abdomen, among others, and they possess a firm appearance, raised above normal skin level, frequently ulcerated and nodular.
  • The common treatment for this type of tumor is surgical excision followed by radiation therapy or chemotherapy (depending on the severity of the tumor).