Comparison of autofluorescence imaging endoscopic findings with pathologic findings after endoscopic submucosal dissection of gastric neoplasms.

Background/aims: All epithelial cells emit autofluoresce, with tumor cells emitting weaker autofluorescence. We categorized patterns of autofluorescence imaging (AFI) and compared their clinical characteristics and pathology findings after endoscopic submucosal dissection.

Methods: Twenty patients were enrolled, comprising 4 adenomas and 16 early gastric cancers.