Sigmoid Perforation Caused by an Aortobifemoral Vascular Graft

An 83-year-old man underwent aortobifemoral bypass graft surgery for an abdominal aortic aneurysm. Ten days after his discharge he was readmitted with fever and signs of infection. A computed tomography scan revealed sigmoid diverticulosis, a perigraft collection containing gas bubbles near the aortic anastomosis and smaller localized collections near the iliac vessels. He was started on antibiotics but a day later he developed hematochezia. A sigmoidoscopy was performed, which revealed a prosthetic vascular graft penetrating “through and through” the sigmoid colon (Figures A–C) with active bleeding at 1 site of the perforation (Figure D, arrow).
Source: Clinical Gastroenterology and Hepatology - Category: Gastroenterology Authors: Tags: Images and Videos Source Type: research