Chemotherapy is the therapeutic use of chemical agents to destroy or inhibit the growth and division of cancer cells. Usually, chemotherapy is used when tumors are widespread or when there is significant or immediate risk of spread from the primary location. It is often used following the surgical removal of tumors. In some cases, chemotherapy is started prior to surgery. The side effects of chemotherapy are related to the effects of chemotherapy on normal -as well as cancerous- cells. The principal goal of cancer care in pets is to provide cancer control without reducing quality of life.

Benign fibrous skin tumors can go by many names and in many cases don’t need treatment. Surgical excision can be curative unless certain types are due to an underlying tumor elsewhere. The main focus in many cases is addressing underlying allergies or sources of pressure. To adequately diagnose these tumors, a biopsy and histopathology are usually necessary.

Basal cell tumors are a common type of skin tumor arising from cells in the deeper layers of the skin. They vary in size, from a few centimeters to inches in diameter, and most commonly appear as single, firm, hairless, raised masses in the skin, often on the head, neck, or shoulders. Most of these tumors are benign but removal may still be considered to prevent trauma or secondary infection. Surgical removal is curative in most cases.