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pilonidal abscess
Pathology:
- an abscess in the sacral region (gluteal cleft above the anus, near the coccyx), containing a hair which may act as a foreign body producing chronic inflammation
- it is thought to be initiated by the penetration of hair beneath the skin
- a cyst, sinus tract or abscess may occur
Differential diagnosis:
1) pilonidal cyst
2) pilonidal sinus
3) anorectal fistula
4) anorectal abscess
Related
abscess/cyst drainage
pilonidal cyst
pilonidal sinus/fistula
General
pelvic abscess
pilonidal disease
References
- NEJM Knowledge+ Gastroenterology