2026 Volume 68 Issue 3 Pages 233-239
A 69-year-old woman was brought to our hospital by ambulance owing to impaired mobility. Contrast-enhanced CT revealed a pelvic abscess secondary to perforated sigmoid diverticulitis. She was treated with bowel rest and intravenous antibiotics, and a transverse colostomy was performed on hospital day 2. However, by hospital day 7, the abscess had still not decreased in size and portal vein thrombosis was identified. As the abscess was adjacent to the rectum, EUS transrectal drainage was performed and an external drainage tube was placed. Additionally, anticoagulant therapy was initiated. Following the drainage procedure, her general condition improved and the abscess decreased in size. The drainage tube was removed on hospital day 18 and the patient was discharged on hospital day 26. EUS transrectal drainage proved to be effective in treating a pelvic abscess that was inaccessible by other approaches. This case demonstrates that EUS transrectal drainage is a safe and minimally invasive alternative when conventional drainage routes are not feasible.
