Sebaceous Cyst Cat. It may be helpful to bathe the cat with a medicated shampoo containing benzoyl peroxide or salicylic acid to keep skin follicles from collecting oil. You should never attempt to treat your cat’s sebaceous cyst on your own as this can cause potentially harmful inflammatory responses in the surrounding tissues.
Sebaceous cysts on cats appear as single or multiple nodules in or under the skin. Sebaceous cysts, technically known as epidermal inclusion cysts, are the most common type in cats. They are the most common surface tumour found in cats and are composed of a thick, cheesy, yellow substance known as sebum, which is a secretion of the sebaceous gland comprised of fat and cellular debris, which lubricates and protects the skin.
Sebaceous cysts are also known as epidermoid or follicular cysts.
S ebaceous cysts (epidermal inclusion cysts) are benign tumours of the skin. The pathology came back and we were told that the cells in the middle of the cyst were abnormal and would be classified as melanoma. If your cat is bothered by their sebaceous cyst, or if it has become large, is oozing, or is at risk of rupturing, you should seek veterinary assistance for your cat. In my experience many cats with sebaceous cysts do not require much treatment beyond an exam by the vet to make sure of what it is.