Abstract
Although anorectal abscess is common, it has not, to our knowledge, occurred with an inguinal abscess so far.
A 45-year-old man who had no remarkable medical histories was admitted to the hospital because of anal pain. Anal pain decreased temporarily after incision drainage with a diagnosis of anorectal abscess, but pyrexia persisted and right inguinal pain appeared on the postoperative day (POD) 12. Contrast-enhanced CT scan showed a gaseous fluid collection extending from the anorectal region to the inguinal region adjacent to the prostate and bladder. Fistulography via the anal canal showed an abscess in the right inguinal region. We diagnosed it as inguinal abscess extending from the anorectal abscess and conducted open drainage of the abscess and colostomy. The postoperative course was good and the patient was discharged on the POD 49. Six months later, the fistula had disappeared, and the stoma was closed. There has been no recurrence of either anorectal or inguinal abscess as of 2 years after the operation.
