It was reported to boston scientific corporation that orise gel was used as a lifting agent during endoscopic resection of a rectal polyp on an unknown date.Pathology findings showed tubular adenoma with high-grade dysplasia.The patient was referred for a trans anal resection, in which significant induration was noted, and there was concern for underlying malignancy.The patient underwent a frozen section, which was negative for malignancy.The frozen section was identified as orise gel related changes.
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