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pilonidal sinus/fistula

Pathology: - a fistula or pit in the sacral region (gluteal cleft), 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, abscess or sinus tract may occur Differential diagnosis: 1) pilonidal cyst 2) pilonidal abscess 2) anorectal fistula

Related

pilonidal cyst

General

fistula pilonidal disease

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999
  2. Pathology, 2nd ed. Rubin & Farber (eds), JB Lippincott, Philadelphia, 1994, pg 673