Pathologic Function
anorectal fistula
an·o·rec·tal fis·tu·la
Also called:
Fistula in Ano
Definitions related to anorectal fistula:
  • A pathologic tract that connects an opening in the anal canal to the perianal skin. In the vast majority of cases there is a history of perianal abscess.
    NCI
    U.S. National Cancer Institute, 2021
  • An anorectal fistula is a tubelike tract with one opening in the anal canal and the other usually in the perianal skin. Symptoms are discharge and sometimes pain. Diagnosis is by examination and sometimes anoscopy, sigmoidoscopy, or colonoscopy. Treatment often requires surgery.
    Merck Manuals
    Merck & Co., Inc., 2025
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