Rare Entities of Histopathological Findings in 755 Sleeve Gastrectomy Cases: a Synopsis of Preoperative Endoscopy Findings and Histological Evaluation of the Specimen.

Background: Laparoscopic sleeve gastrectomy (LSG) is the most preferred technique in morbidly obese patients for weight loss. There is a controversy about the routine preoperative evaluation of the stomach and the routine microscopic examination of all LSG specimens. Our aim is to analyze the results of both preoperative upper gastrointestinal endoscopy and endoscopic biopsies and also the results of histopathological examination of LSG specimens.