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Anorectal abscess

Anorectal is an abscess adjacent to the anus. Most cases of perianal abscesses are sporadic, though there are certain situations which elevate the risk for developing the disease, such as , Crohn's disease, corticosteroid treatment and others. It arises as a complication of paraproctitis. Ischiorectal, inter- and intrasphincteric abscesses have been described.

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Plain-language summary adapted from Wikipedia. Not medical advice.