A Large Sigmoid Pseudo-Pedunculated Lipoma Mimicking an Adenoma: A Report of a Rare Case and Literature Review.

Large colonic lipomas exceeding 2.0 cm in size may rarely mimic colorectal adenomas and hence we referred to such lipomas as pseudo-pedunculated lipomas. They can exhibit surface erosions, fissure ulcerations, and mucosal erythema and can pose diagnostic dilemmas during colonoscopy.