Clipping prevents perforation in large, flat polyps

Figure 1 Images of Flat right polyp removed by the grasp and snare endoscopic mucosal resection technique. A: Flat polyp in proximal colon; B: Polyp lifted with saline and viewed with i-scan; C: Edge of mucosal defect is grasped with a biopsy forceps and then the edges of the defect are approximated and clipped; D: Clip closure of the mucosal defect.

Figure 2 Flow chart of eligible and enrolled patients.