Mechanical intestinal obstruction due to isolated diffuse venous malformations in the gastrointestinal tract: A case report and review of literature

Figure 2 Colonoscopic findings. A, B: Endoscopy displayed a pseudotumoral, smooth, embossed, vessel-like mass, which occupied the sigmoid colon and rectum; C: Bluish submucosal serpentine varicosities; D: Sporadic lamellar submucosal lesions; E: Ischemic appearance; F: Congestion, swelling and bleeding.