Fig. 1
From: Clinicopathologic and endoscopic features of early-stage colorectal serrated adenocarcinoma
A case of Tis serrated adenocarcinoma with a serrated adenoma. a Colonoscopic view of a serrated adenocarcinoma lesion in the ascending colon. b Endoscopic findings after indigo carmine spraying; the small elevated nodule in the tumor can be observed. c Magnifying narrow-band imaging (NBI) observation. In the tumor lesion, mucosa with a Japan NBI Expert Team classification type B can be observed. d Magnifying endoscopic finding after indigo carmine dye spraying. Type II-open-containing normal type II pits are observed in the tumor. e Hematoxylin and eosin (HE) staining of the whole specimen. f, g High-power view of the HE-stain specimen; a section of adenocarcinoma is shown