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Sheep in Wolf's Clothing: Pedunculated Colonic Lipoma with Overlying Hyperplastic and Ulcerated Epithelium
Rossella Palma1, Stefano Pontone2, Ignazio Roberto Marino3
1Department of Surgical Sciences, "Sapienza" University of Rome, V.le Regina Elena 324, 00161, Rome, Italy. rossellapalma89@gmail.com.
Introduction:
Lipomas are the most common non-epithelial benign tumors of the gastrointestinal tract with a reported incidence in the colon of 0.2-4.4%. These lesions are usually asymptomatic with a typical endoscopic finding of a smooth, slightly yellow, circular, polyp that is sessile in most cases, covered with normal colonic mucosa.
Areas Covered:
There are rare reported cases of alterations of the overlying mucosa such as hyperplasia, atrophy, adenomatous changes, and necrosis.
Expert Commentary:
We report a rare case of pedunculated colonic lipoma of the transverse colon covered with hyperplastic and ulcerated epithelium easily misdiagnosed as an adenomatous lesion.
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