Abstract:An internal opening (primary opening) in the anal canal or rectum and an exterior opening (secondary opening) in the
perianal skin combine to form a stula-in-ano, an inammatory track. Unhealthy brous tissue and granulation tissue line
this tract. Intersphicteric stulas are ones that cross the internal sphincter and then have a tract to the outside of the anus leading1. The prevalence
of an anal abscess-induced stula-in-ano ranged from 26% to 38%.In men,the prevalence is 12.3 cases per 100,000 population a… Show more
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