Pyogenic Granuloma of the Esophagus Located at the EGJ, Report of a Case Manabu Takeuchi 1 , Takashi Kato 2 , Soichi Ishi 1 , Takafumi Tonouchi 1 , Kaito Furuyama 1 , Takayuki Watanabe 1 , Yoko Kobayashi 1 , Takamasa Kobayashi 1 , Yuji Kobayashi 1 , Junji Kohisa 1 , Seiichi Yoshikawa 1 , Hiroyuki Usuda 3 , Yoichi Ajioka 2 1Department of Gastroenterology, Nagaoka Red Cross Hospital, Nagaoka, Japan 2Division of Molecular and Diagnostic Pathology, Niigata University, Graduate school of Medical and Dental Sciences, Niigata, Japan 3Department of Pathology, Nagaoka Red Cross Hospital, Nagaoka, Japan Keyword: pyogenic granuloma , 食道 , 内視鏡診断 , NBI , ESD pp.867-873
Published Date 2021/5/25
DOI https://doi.org/10.11477/mf.1403202475
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 A male in his 70s undergoing conventional esophagoscopy due to dysphagia was found to have a 10-mm reddish elevated lesion covered with a whitish coating on the top. The lesion was treated by endoscopic submucosal dissection with en bloc resection as a total biopsy. The pathological findings revealed erosions consisting of epithelium exfoliates or thin squamous epithelium on the surface of the lesion. The subepithelial proliferation of dilated capillary vessels, inflammatory cell infiltration, and edema in the stroma with fibrotic change were also recognized in the lamina propria. Consequently, this lesion was finally diagnosed as pyogenic granuloma. Endoscopic images, including magnifying endoscopy with narrow-band imaging, for this lesion showed various findings, such as a part covered with a thick whitish coat, a part with some dilated vessels in the cloudy region, and a part with strong redness showing many dilated vessels. The histopathological features of pyogenic granuloma are different based on the time phase. Moreover, these pathological differences may reflect the various endoscopic findings.

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