epidermal cyst

epidermal cyst
a benign cyst derived from the epidermis or the epithelium of a hair follicle, formed by cystic enclosures of epithelium within the dermis, becoming filled with keratin and lipid-rich debris. Types include dermoid cyst, epidermal inclusion cyst, pilar cyst, milium, and steatocystoma. Called also epidermoid or epithelial c.

Medical dictionary. 2011.

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  • epidermal inclusion cyst — a type of epidermal cyst that is an inclusion cyst on the head, neck, or trunk; it is circumscribed and mobile and is formed by keratinizing squamous epithelium that has a granular layer and is similar to the normal epithelium of the follicular… …   Medical dictionary

  • Cyst — A closed sac or capsule, usually filled with fluid or semisolid material. * * * 1. A bladder. 2. An abnormal sac containing gas, fluid, or a semisolid material, with a membranous lining. SEE ALSO: pseudocyst. [G. kystis, bladder] adventitious c.… …   Medical dictionary

  • Epidermoid cyst — Infobox Disease Name = PAGENAME Caption = Epidermal Cyst, ear DiseasesDB = 29388 ICD10 = ICD10|L|72|0|l|60 ICD9 = ICD9|706.2 ICDO = OMIM = 131600 MedlinePlus = eMedicineSubj = derm eMedicineTopic = 860 MeshID = D004814An epidermoid cyst is a… …   Wikipedia

  • dermoid cyst — n a cystic tumor often of the ovary that contains skin and skin derivatives (as hair or teeth) called also dermoid * * * (dermoid) a cyst containing hair, hair follicles, and sebaceous gland, usually found at sites marking the fusion of… …   Medical dictionary

  • pilar cyst — a type of epidermal cyst, usually a firm, circumscribed, subepidermal nodule, especially on the scalp; it is formed by an outer wall of keratinizing epithelium without a granular layer, similar to the normal epithelium of the hair follicle near… …   Medical dictionary

  • infundibular cyst — an epidermal cyst that arises from the follicular infundibulum …   Medical dictionary

  • implantation cyst — epidermal inclusion c …   Medical dictionary

  • Cutaneous columnar cyst — Cutaneous columnar cysts are a cutaneous condition, a group of different cysts lined by columnar epithelium.[1]:682 Types of cysts included in this group are:[1]:682 3 Bronchogenic cyst Branchial cyst Thyroglossal duct cyst Cutaneous ciliated… …   Wikipedia

  • epidermoid cyst — n a cystic tumor containing epidermal or similar tissue called also epidermoid see CHOLESTEATOMA * * * see sebaceous cyst * * * 1. epidermal c. 2. a benign tumor in the skull, meninges, or brain, formed by inclusion of epidermal elements,… …   Medical dictionary

  • Cutaneous ciliated cyst — Cutaneous ciliated cysts are a cutaneous condition characterized by solitary cysts located on the legs of females.[1]:682 See also Cutaneous columnar cyst Skin lesion References ^ James, William D.; Berger, Timothy G.; et al. (2006). Andrews… …   Wikipedia

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