Resection of a large sessile colonic polyp

(A) Sessile polyp in the sigmoid colon measuring approximately 4 cm; (B/C) A monofilament stiff snare is applied tangentially to ensnare a flat portion of the lesion. For complete resection, it is advisable to begin working from a lateral margin of the polyp; (D/E) In repeated maneuvers the polyp is resected in a piecemeal technique. (F) A retrieval net is used to collect the resected pieces; (G/H) The net can be opened and closed repeatedly without losing the previously collected pieces; (I) Resection site after complete mucosectomy; (J) Clean scar at follow-up three months later.