A case of neuroendocrine tumor G1 with unique histopathological growth progress

Figure 1 An 8-mm protruded lesion was shown at upper endoscopy. A: Upper endoscopy revealed an 8-mm protruded lesion on the anterior wall of the stomach body. The lesion is the same color as background mucosa and it is not yellow; B: Indigo carmine dye permitted the lesion’s demarcation line to become more distinct; C, D: There were dilated vessels on the surface, but neither irregular microvessel patterns nor irregular microsurface patterns were observed by magnifying narrow-band imaging.