Fig. 1

Confusion matrices displaying the diagnostic result of microprobe endoscopic ultrasound compared to pathology for subepithelial lesions. Abbreviations: MEUS: Microprobe Endoscopic ultrasonography; GIST, Gastrointestinal stromal tumor; NET, Neuroendocrine tumor; EP, Ectopic pancreas; IFP, Inflammatory fibroid polyp. #, MEUS identified five rare lesion types, but only three were matched with pathological findings