what is a sebaceous gland cyst
A sebaceous cyst is a type of cyst that forms in the epidermis, the outermost layer of the skin.A sebaceous cyst is also sometimes called an epidermal cyst. It forms when a sebaceous gland, an oil-producing gland in the skin, becomes blocked.This creates a sac that fills with a fatty yellow substance that can resemble cottage cheese. sebaceous cyst is a type of cyst that forms in the epidermis, the outermost layer of the skin.