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Snare cauterization procedure (Case 17). A A 14-mm-diameter polyp in the ascending colon. B In preparation for cauterization, sufficient saline was locally injected to create a protrusion >10 mm from the muscle layer. C Following snare resection, the snare tip was lightly pressed against the cut surface, and performed cauterization just above the muscle layer line. D We observed no blood vessels in the cauterized ulcer floor
