- Cyst, pilonidal
- A special kind of abscess that occurs in the cleft between the buttocks. Forms frequently in adolescence after long trips that involve sitting.
Medical dictionary. 2011.
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pilonidal sinus — a short tract leading from an opening in the skin in or near the cleft at the top of the buttocks and containing hairs. The sinus may be recurrently infected, leading to pain and the discharge of pus. Treatment is by surgical opening and cleaning … Medical dictionary
Pilonidal cyst — A pilonidal cyst, also referred as sacrococcygeal fistula, is a cyst near the natal cleft of the buttocks that often contains hair and skin debris. EtymologyPilonidal means nest of hair , and is derived from the Latin words for hair ( pilus ) and … 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
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
pilonidal — Denoting the presence of hair in a dermoid cyst or in a sinus opening on the skin. [pilo + L. nidus, nest] * * * pi·lo·ni·dal .pī lə nīd əl adj 1) containing hair nested in a cyst used of congenitally … Medical dictionary
pilonidal — |pīlə|nīdəl adjective Etymology: pil (I) + Latin nidus nest + English al more at nest 1. : containing hair nested in a cyst used of congenitally anomalous cysts in the sacrococcygeal area that often become infected and discharge through a channel … Useful english dictionary
pilonidal — adjective Etymology: Latin pilus hair + nidus nest Date: 1880 of, relating to, or being a hair containing cyst of the skin in the lower back region near the upper crease of the buttocks … New Collegiate Dictionary
pilonidal — /puy leuh nuyd l/, adj. Pathol. noting or pertaining to a growth of hair in a dermoid cyst or in the deeper layers of the skin. [1875 80; < NL; see PILE3, O , NIDUS, AL1] * * * … Universalium
pilonidal — adjective Having body hairs which have grown in a concentrated area on the skin and formed a cyst or abscess … Wiktionary
pilonidal — adj. of hair growth within a cyst (Medicine) … English contemporary dictionary