International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
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.
postcoordination
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