This is a large, flat, biopsy-proven, tubular-adenoma of the distal cecum, proximal ascending colon. Despite attempts to raise the lesion, using subcutaneous injection of saline/epinephrine mixture, the surgeon felt the risk of perforation to be too high to attempt complete removal via colonoscopic piecemeal resection. On average, depending on size, this type of polyp has about a 25% chance of carcinoma (cancer) occuring within it at 5 years–perhaps less–perhaps more. Incidentally, patient also has benign melanosis coli (from laxative dependency).
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