ischioanal
Ischioanal, or ischiorectal, refers to the ischioanal (ischiorectal) fossa, a fat-filled space on each side of the anal canal within the perineum. The fossae form part of the potential spaces of the perineum and serve as a conduit for neurovascular structures supplying the anal and perineal regions.
Anatomy and boundaries: Each ischioanal fossa is bounded medially by the external anal sphincter and the levator
Contents: The fossa contains fat and neurovascular structures, notably the internal pudendal vessels, pudendal nerve and
Clinical significance: The ischioanal fossa is a common site for infections such as ischioanal abscess, presenting