Two cases of adenocarcinoma occurring in sporadic fundic gland polyps observed by magnifying endoscopy with narrow band imaging

Figure 1 Conventional endoscopy in Case 1. Reveals a reddish polypoid lesion adjacent to an isochromatic small polyp on the anterior wall of the upper gastric body (A). ME-NBI of the reddish polypoid lesion shows an irregular microvascular architecture composed of closed loop- or open loop-type vascular components, plus irregular microsurface structure composed of oval-type surface components with demarcation line (vessels within epithelium pattern; B); ME-NBI of the adjacent isochromatic polyp shows regularly arranged round gastric pits within regularly arranged honeycomb-like microvessels with demarcation line (epithelium within vessels pattern; C).