pilar cyst

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 the sebaceous duct. Called also sebaceous c., trichilemmal c., and wen.

Pilar cyst.


Medical dictionary. 2011.

Look at other dictionaries:

  • pilar cyst — noun a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked • Syn: ↑sebaceous cyst, ↑wen, ↑steatocystoma • Hypernyms: ↑cyst • Hyponyms: ↑ …   Useful english dictionary

  • proliferating pilar cyst — proliferating trichilemmal cyst see under tumor …   Medical dictionary

  • Cyst — This article is about cysts in the body. For the ICAO airport code CYST, see St. Theresa Point Airport. For hard shelled resting stages of some small organisms, see Microbial cyst. Cyst Classification and external resources …   Wikipedia

  • 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

  • Sebaceous cyst — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 29388 ICD10 = ICD10|L|72|1|l|60 ICD9 = ICD9|706.2 ICDO = OMIM = MedlinePlus = 000842 eMedicineSubj = eMedicineTopic = MeshID = D004814A sebaceous cyst (a form of trichilemmal cyst) is a… …   Wikipedia

  • Periapical cyst — Classification and external resources CT scan through head showing a right periapical cyst ICD 10 K …   Wikipedia

  • Odontogenic cyst — Not to be confused with Calcifying odontogenic cyst, Glandular odontogenic cyst, Dental cyst, or Paradental cyst. Odontogenic cyst Classification and external resources Odontogenic cyst is a closed sac, having a distinct membrane derived from… …   Wikipedia

  • 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

  • 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,… …   Medical dictionary

  • sebaceous cyst — noun a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked • Syn: ↑pilar cyst, ↑wen, ↑steatocystoma • Hypernyms: ↑cyst • Hyponyms: ↑ …   Useful english dictionary

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