Discovering a lump on your cat can be a scary experience. Not all lumps on cats are cancerous, but many do need veterinary ...

Skin Cysts Cysts are noncancerous, closed pockets of tissue that can be filled with fluid, pus, or other material. Cysts are common on the skin and can appear anywhere.

Estimates show that for every 100,000 dogs, 450 are diagnosed with some form of skin or subcutaneous-tissue (structures just below the skin) cancer, and 120 cats are diagnosed for every 100,000.

A biliary cyst is a large, fluid-filled growth on the bile duct system of the liver. It's the most common type of liver mass seen in cats, but the incidence isn't very high — about 5.5 percent.

Dear Dr. John,Our male cat is 10 years old. About three years ago, our vet detected a large mass in his abdomen, which even then seemed to be as large as a lemon. After several months, we took the … ...

Skin cysts and tumors are skin problems that sometimes cause pain. Skin cysts are non-cancerous closed pockets or pouches of tissue that are filled with fluid or other material.

Cysts and boils are both lumps that appear under the skin. Although the symptoms are similar, the causes and treatments are different. Learn more here.