Narrow band imaging characteristics of gastric polypoid lesions: a single-center prospective pilot study

Introduction: Gastric polypoid lesions (GPL) are endoscopic findings whose histological nature is difficult to determine with white-light endoscopy. Hyperplastic polyps (HP), type-1 gastric carcinoids (T1-GC) and adenomas are the most frequent GPL needing different management. Narrow-band imaging (NBI) has high accuracy for gastric malignant lesions but few studies assessed whether GPL display specific NBI characteristics. We aimed to investigate the endoscopic NBI appearances of GPL. Materials and methods: During gastroscopies, images of GPL were recorded, and lesions were removed for histological evaluation. Two endoscopists blindly reviewed the digital images and registered the endoscopic NBI appearances on a specific check-list. GPL were categorized in HP, adenomas and T1-GC using histology as gold standard. Results: Overall 52 GPL, observed in 40 patients [F55%; age 63 (36–85) years], were included: 29 (55.8%) HP; 18 (34.6%) T1-GC; 5 (9.6%) adenomas. The median size was seven (2–35) mm. A regular circular mucosal pattern was more frequently observed in HP and T1-GC compared to adenomas (P
Source: European Journal of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Original Articles: Gastroenterology Source Type: research