2021 Volume 63 Issue 5 Pages 1106-1112
A 69-year-old man underwent total colonoscopy for chronic diarrhea. Past medical history revealed that a vascular graft had been inserted in the abdominal aorta 14 years previously. Colonoscopy revealed a vascular graft at the oral side of advanced carcinoma in the transverse colon. The site of penetration was not found in the colon, but esophagogastroduodenoscopy showed a scar at the third portion of the duodenum. Contrast-enhanced computed tomography revealed disappearance of the artificial aortic vascular graft and there were adhesions between the abdominal aorta and the third portion of the duodenum. These findings indicated that the vascular graft found in the transverse colon under colonoscopy had migrated through a secondary fistula that had formed between the abdominal aorta and the third portion of the duodenum. We herein report this intriguing case with a Japanese literature review.
