Colonoscopic Snare-assisted Transanal Resection of a Large Lipoma at the Rectosigmoid Junction

Colonic lipomas are rare benign tumors of nonepithelial origin. They are usually asymptomatic, but occasionally patients presenting with symptomatic colonic lipomas are treated with resection, either endoscopically or surgically. We report a 33-year-old woman who presented with a protruding mass at the anal orifice after defecation. She received colonoscopic snare-assisted transanal resection and pathology showed that the mass was a lipoma.