A CASE REPORT : ARTERIOVENOUS MALFORMATION OF THE RECTUM IN 8-YEAR-OLD-MALE

Abstract

A 8-year-old-man was admitted to our hospital because of fresh anal bleeding with a sudden onset without abdominal pain. Emergency colonoscopy revealed dilatated abnormal vessel with bleeding in the rectum. Endoscopic hemostasis with a local injection of Aethoxysclerol was performed without a recurrent bleeding. Angiography is a useful method in the diagnosis of the arteriovenous malformation (AVM), but there are some asymptomatic cases of AVM. Therefore, emergency colonoscopy was considered to be an important initial examina-tion for the diagnosis of the AVM. Furthermore, we concluded that endoscopic hemostasis with a local injection of Aethoxysclerol and coagulation therapy including "Hot biopsy" were an adequate initial treatment, considering that the AVM was usually occured in an elder age.