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Basaloid Squamous Cell Carcinoma with Characteristic Vascular Pattern by Magnifying Endoscopy, Report of a Case Akihisa Tomori 1 , Tsuneo Oyama 1 , Akiko Takahashi 1 , Yoko Kitamura 1 , Kinichi Hotta 1 , Tomoaki Shinohara 1 , Yoshinori Miyata 1 1Department of Gastroenterology, Saku Central Hospital, Saku, Japan Keyword: 類基底細胞癌 , 腺様囊胞癌 , 拡大内視鏡 pp.750-756
Published Date 2011/5/24
DOI https://doi.org/10.11477/mf.1403102236
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 A 60s-year-old male underwent esophago-gastroscopy. A flat elevated lesion with central depression was observed in the middle esophagus. The color of the oral part was red and magnifying endoscopy showed loop-shaped irregular vessels(part A). The color of the anterior part was moderate red and there were some depressed a-vascular areas with unusual surrounding vessels(part B).

 Histologically, regenerative vessels caused by erosion were observed on the surface of part A, and SCC(squamous cell carcinoma)had invaded to SM2. The vessels of part A observed with magnifying endoscopy were different from those of the part where SCC invaded the submucosa. So, the loop-shaped vessels were considered to be regenerative vessels.

 Microscopic findings of part B revealed the exposure of BSC(basaloid squamous cell carcinoma)nests with few vessels and large vessels between BSC nests. The avascular areas of part B observed with magnifying endoscopy corresponded to BSC nests and the unusual vessels surrounding the avascular areas corresponded to the vessels between BSC nests. Therefore, these findings with magnifying endoscopy were considered to be the characteristic findings of BSC.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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