A case of signet-ring cell carcinoma of the lung responding to S-1 as the third therapeutic regimen

作者: Takako Hirota , Makoto Hamasaki , Taishi Harada , Masaki Fujita , Kazuki Nabeshima

DOI: 10.2482/HAIGAN.50.287

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摘要: 背景.肺原発の印環細胞癌は稀な腫瘍であり,予後がよくない.抗癌剤の効果についてもまとまった臨床研究はない.症例.38歳,男性.検診で右肺の異常陰影を指摘され,受診した.右上葉の無気肺があり入院となった.気管支鏡下洗浄液の細胞診で腺癌と診断された.右中葉・下葉には癌性リンパ管症を示唆する陰影に加え,小脳虫部に転移結節があり,全身化学療法を行った.ドセタキセル+シスプラチン,イリノテカン+シスプラチンはいずれも無効で,S-1を次に選択した.S-1開始後,後腹膜の左腸腰筋外側や右副腎の転移結節が一時的ではあるが,著明に縮小した.死後剖検が行われ,印環細胞成分を有する肺原発腺癌であった.結論.胃癌に有効性が確認されているS-1の治療効果を肺原発印環細胞癌で検討する意義がある.

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