Giant ascending colonic lipoma accompanied by intussusception

A 49-year-old woman presented with a 1-month history of abdominal pain. The symptom became aggravated in the past day. Abdominal contrast enhanced CT showed classic "Bulls eye" appearance with concentric rings on axial image. Coronal and sagittal reconstruction revealed intussusception, with the proximal intussusceptum invaginating into the adjacent distal intussuscepiens. A fat density tumor of about 5.0 cm in diamater was also detected in the hepatic flexure. Colonoscopy showed a cauliflower-like tumor with a rough surface in the hepatic flexure, measuring 5.0 cm in diameter. Laparoscopic findings confirmed ascending colonic tumor accompanied by intussusception and an radical right hemicolectomy was performed. Histopathology confirmed a 4.0 × 4.0 × 4.5 cm submucosal lipoma in the ascending colon.