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	原著
言語種別	英語
査読の有無	査読なし
表題	A Case of Pathologically Complete Response After Nivolumab Combined with Chemotherapy in a Gastric Cancer Patient with Virchow's Lymph Node Metastasis
掲載誌名	正式名：Clinical and experimental gastroenterology 略　 称：Clin Exp Gastroenterol ISSNコード：11787023/11787023
掲載区分	国外
巻・号・頁	16,pp.107-115
著者・共著者	IZUMO Wataru†, HOSODA Kei, KURAMOCHI HIDEKAZU, NAKAJIMA Go, MAEDA Shinsuke, ITO Shunichi, NAGASHIMA Yoji, ITABASHI Michio
発行年月	2023/06
概要	Gastric cancer with Virchow's lymph node metastasis (LNM) is not indicated for initial curative surgery. Although there have been some case reports of curative resections after pre-operative treatment, including immune checkpoint inhibitors (ICIs), there is no consensus regarding the optimal timing of surgery. We describe a rare case of initially unresectable gastric cancer treated preoperatively with nivolumab combined chemotherapy, which achieved a pathologically complete response. An 82-year-old man was referred for gastric cancer treatment. Contrast-enhanced computed tomography revealed stomach wall thickening and swollen left supraclavicular LN. This gastric cancer was assessed as unresectable due to the presence of Virchow's LNM; therefore, chemotherapy and ICI using S-1 plus oxaliplatin plus nivolumab were administered. After three courses of treatment, the primary tumor and Virchow's LN showed a marked reduction in size. The patient underwent Virchow's LNM resection as a preliminary step to determine indications for curative surgery. A pathological examination revealed no viable cancer cells were found inside the resected LN. The patient underwent distal gastrectomy. Pathological examination revealed complete degeneration of the primary tumor and regional LN without residual carcinoma. The patient did not receive adjuvant chemotherapy and survived with no evidence of recurrence for one year after the initial treatment.
DOI	10.2147/CEG.S417644
PMID	37469765