Abstract
We present a rare case of left-colonic intussusception in a 31-year-old patient caused by a large, necrotic, ulcerated lipoma. This case is noteworthy as the patient is a young man, which is an atypical population for this presentation. The left colon is also a relatively uncommon site for colonic lipomas. Overlying colonic mucosal ischemia and large size of the lipoma precluded endoscopic treatment and ultimately required a partial colectomy.