New Developments in “Crawling-type” Adenocarcinoma of the Stomach:Endoscopic Diagnosis of “Crawling-type” Adenocarcinoma of the Stomach Kei Nakazawa 1 , Shigetaka Yoshinaga 1 , Junpei Yonemaru 2 , Reona Kawamura 1 , Takuma Okamura 1 , Gozo Fukushi 1 , Takayuki Yamazaki 1 , Seiichiro Abe 1 , Satoru Nonaka 1 , Haruhisa Suzuki 1 , Ichiro Oda 1 , Taiki Hashimoto 2 , Shigeki Sekine 2 , Yutaka Saito 1 1Endoscopy Division, National Cancer Center Hospital, Tokyo 2Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, Tokyo Keyword: 手つなぎ・横這い型胃癌 , 早期胃癌 , 内視鏡診断 , 範囲診断 , irregular micro pit pp.1330-1337
Published Date 2021/9/25
DOI https://doi.org/10.11477/mf.1403202559
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 Thirty-five patients with early-stage gastric cancer who underwent endoscopic submucosal dissection or surgery at our hospital between April 2018 and December 2020 for the presence of “crawling-type” adenocarcinoma of the stomach were enrolled in this study. The patients subsequently underwent preoperative NBI(narrow-band imaging)magnification endoscopy. The endoscopic characteristics of the lesions were investigated and compared with those previously reported.

 In many cases, the lesions lacked color change, elevation, or depression and could only be recognized as disordered gastric subdivisions. On NBI magnification endoscopy, the lesions showed various surface irregularities, and no specific findings were obtained. Irregular micropits were observed in some cases, suggesting that this may be a characteristic finding of “crawling-type” adenocarcinoma of the stomach on NBI magnification endoscopy.

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