マエダ　シンスケ   Maeda Shinsuke   前田　新介    所属   医学部 医学科（東京女子医科大学病院）    職種   助教
論文種別	症例報告
言語種別	英語
査読の有無	査読なし
表題	Primary lymphoepithelioma-like carcinoma of the esophagus with metastatic lymph node and gastric cancer.
掲載誌名	正式名：Clinical journal of gastroenterology 略　 称：Clin J Gastroenterol ISSNコード：18657265/18657265
掲載区分	国内
巻・号・頁	14(5),pp.1329-1336
著者・共著者	NARUMIYA Kosuke†, YAGAWA Yosuke, KUDO Kenji, MAEDA Shinsuke, TOYOSHIMA Yukinori, OGAWA Kyohei, IZUMIKA Sho, HARADA Kimito, Itabashi Michio, OSUGI Harushi
発行年月	2021/10
概要	Upper gastrointestinal lymphoepithelioma-like carcinoma (LELC) is a rare disease-especially esophageal LELC (ELELC). Here, we report a surgically treated case of ELELC with gastric carcinoma. The patient was a 68-year-old asymptomatic Japanese man. Endoscopy revealed a submucosal-like protruding tumor located in the anterior wall of the esophagus 31-33 cm from the upper incisors and a slightly ulcerative lesion at the antrum of stomach. Histopathological diagnosis from biopsy of the esophageal lesion revealed a poorly differentiated squamous cell carcinoma; the stomach lesion was found to be well-differentiated tubular adenocarcinoma. CT showed a swollen lymph node along the left recurrent nerve. On the basis of a diagnosis of esophageal and gastric cancer, we performed esophagectomy with three-field lymph node dissection and partial gastrectomy. Histopathology of the resected esophageal tumor revealed solid nests of cancer cells, with substantial infiltration of lymphoid cells into the stroma. There were poorly differentiated cancer cells with large nuclei in the lymph node. In situ hybridization for Epstein-Barr virus showed no nuclear signal in the tumor cells. Immunohistochemistry gave a diagnosis of ELELC.
DOI	10.1007/s12328-021-01489-1
PMID	34328628