a swelling that occurs under the skin, most commonly on the scalp, face, ears, and genitals; although usually harmless, can grow very large and become painful if infected
A benign cyst containing oil and cells from a sebaceous gland.
a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked
a benign, harmless growth that occurs under the skin and tends to be smooth to the touch
a catchall term for a benign, harmless growth that occurs
a closed sac found just under the skin containing pasty
a closed sac occurring just under the skin which contains a "pasty" or "cheesy" looking substance
a collection of sloughed material from the skin surface
a collection of sloughed of scrotal mass
a nest of skin debris that collects under the skin
a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles
a sac below the skin which fills with a fluid and protrudes from the skin
a sac filled with a cheeselike, greasy material (sebum) caused by plugged ducts at the site of a hair follicle
a simple benign cyst, filled with a semisolid material, and comes about because of a badly formed hair root
a small benign firm lump in the skin that contains waxy material
a tiny sac of often rancid sebum, sometimes involving a hair follicle
A sebaceous cyst (a form of trichilemmal cyst; also called: keratin cyst or wen; more correctly called: epidermal cyst or epidermoid cyst (see ICD-10 L72.0)) is a closed sac or cyst below the surface of the skin that has a lining that resembles the uppermost part (infundibulum) of a hair follicle and fills with a fatty white, semi-solid material called keratin.
