An unusual colonic mass in a phlebosclerosis patient.

A 47-year-old man with idiopathic mesenteric phlebosclerosis presented to our hospital because of a 2-month history of diarrhea and edema of both lower limbs. Contrastenhanced abdominal computed tomography (CT) showed a 2-cm mass of mixed density in the ascending colon. On coloscopy, a solid, ulcerated, semi-pedunculated, lobulated protruding mass of 3.5×3.5×1.5 cm was observed and removed with hot snare polypectomy. Histologic examination demonstrated a hamartomatous polyp with normal epithelium and an inflammatory infiltrate with dilated, mucus-filled cystic glands in the lamina propria, indicating a juvenile polyp.