Sebaceous Gland Tumors are also common. They are derived from sebaceous glands usually attached to hair follicles in the dermal layer of the skin. The sebum normally produced by these glands will form the content of a sebaceous cyst. These will appear anywhere on the body as raised, horny growths, perhaps with an ulcerated surface. These tumors are benign, but again surgical removal and biopsy should be done to distinguish them from sebaceous gland adenocarcinoma.
Complete excision is recommended to prevent recurrence.
Warts are usually caused by one of two papilloma viruses. The other type causes warts to appear on the face, neck and limbs. Warts may also be caused by some noninfectious irritants which produce a solitary wart. Viruses usually cause multiple warts. Younger dogs are more likely to be affected by papilloma viruses, but after they recover, they are usually immune to further infection.