Successful Treatment of Bleeding Rectal Varices with Balloon-Occluded Retrograde Transvenous Obliteration in a Patient with a History of Sigmoidectomy 1) Department of Diagnostic Radiology, Fukuiken Saiseikai Hospital, Japan 2) Department of Gastroenterology, Fukuiken Saiseikai Hospital, Japan

Rectal varices most commonly develop in patients with portal hypertension due to liver cirrhosis. Although rectal varices rarely cause bleeding, their rupture can lead to life-threatening massive hemorrhages. Balloonoccluded retrograde obliteration (BRTO) is feasible in cases of varices involving a single or a few drainage vessels. Although rectal varices usually have numerous drainage vessels, the present case involved a single drainage vessel. The unusual presentation of the current case was considered to have been caused by a previous surgery for sigmoid colon carcinoma. BRTO was successfully performed through the left internal iliac vein, achieving complete hemostasis of the rectal varices.