Abstract
A 64-year-old female was being been followed up due to liver cirrhosis and renal failure with recurrent melena. Previous esophagogastroduodenoscopy and colonoscopy revealed no specific findings. Video capsule endoscopy (VCE) revealed a hemorrhagic protruding lesion in the left-sided transverse colon. Colonoscopy revealed a small reddish SMT-like lesion with erosion on its surface, 1 cm in size, in the left side of the transverse colon. Abdominal angiography revealed nidus and early venous return in the same region, suggesting a colonic arteriovenous malformation (AVM). The patient was treated unsuccessfully with transcatheter embolization and partial resection was carried out. Pathological findings of the specimen were consistent with an AVM.
