Catalog
Anal fistula
Link to WHO Definition
Anal fistula – http://id.who.int/icd/entity/206903882
Anal fistula is an abnormal communication, hollow tract lined with granulation tissue connecting the primary opening inside the anal canal to a secondary opening in the perineal skin. They are usually associated with anorectal abscesses, and they are thought to be a chronic condition after an abscess evacuation.