Ischioanal fossa

Dr Henry Knipe et al.

The ischioanal (or ischiorectal) fossa is a fat-filled space of the perineum

Gross anatomy

The ischioanal fossa is a paired triangular-shaped space lateral to the anal canal with an apex directed anteromedially towards the pubic symphysis. Each ischioanal fossa is separated from the other by the anococcygeal body but they do still communicate superiorly to this and posterior to the anal canal. 

Boundaries
Contents

Related pathology

Abdominal and pelvic anatomy
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Article information

rID: 26771
Section: Anatomy
Synonyms or Alternate Spellings:
  • Ischorectal fossa

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