It was reported to boston scientific corporation that 15-20ml of orise gel was used as a lifting agent in the colon during an endoscopic mucosal resection (emr) procedure on an unknown date.The patient underwent an initial emr on a large colonic polyp measuring nearly 3-4cm.A routine repeat surveillance colonoscopy was done three months later, which noted a firm subepithelial lesion in the same area measuring around 1.5cm.Bite-on-bite biopsies were performed on the firm lesion, but the pathology results came back as normal tissue.Reportedly, the patient will return for additional surveillance in 9-12 months to reevaluate the lesion.
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