A CLINICO.PATHOLOGICAL STUDY OF ANAL FISTULAE

Anal Fbtula
Rcrtlew of Literamrc
ANATOMY
Detailed anatomical knowledge of anal canal is essential for proper
l* understanding of pathologlcal changes that occur in this area.
'
The goal of this chapter is to describe functional anatomy of
ilroreatum and pelvic floor particulady from point of view of the surgeon
performing pelvic and anal surgery.
Anal Cennl:
- $kin of anal verge below.
*
Short canal 3-4 cm long extending from anorectal ring above to hairy
L Relatisns
Circurnferentially, surrounded by sphincters keeping it closed at rest
with opposition of its lateral walls forming antero-posterior slit.
Posteriorly related to coccyx with fibrofatty muscular tissue in between.
t
t
, Laterally related to ischiorectal fossa containing inferior hemorroidal
Anteriorly
trn male
vessels and pudendal nerve in Alcock's canal.
Posterior border of bulb of urethra.
Urogenital diapluagm containing mernbranous urethra.
In female
Perineal body and lower part of posterior vaginal wall
(Goligher et aL, 1955).