文献詳細
今月の主題 進行胃癌の診断と治療方針2024
主題
文献概要
要旨●局所進行胃癌に対しては手術先行+術後補助化学療法が日本の標準治療であるが,高度リンパ節転移症例では術前化学療法が選択される.限局型では30mm,浸潤型では50mmの肉眼的マージンを保ち,D2郭清を伴う幽門側胃切除か胃全摘を行う.食道胃接合部癌では噴門側胃切除を選択する場合が多いが,手術アプローチを決定する際に,食道側と胃側の浸潤距離の術前評価が重要となる.大彎浸潤を来した胃上部進行胃癌では脾門郭清が必要となる.幽門側胃切除に関しては,進行胃癌であっても腹腔鏡下手術が標準治療とされている.切除可能境界胃癌では化学療法後の手術を前提とした集学的治療を行う.切除不能胃癌に対しては化学療法が第一選択であるが,ダウンステージしR0切除が可能と判断された場合,コンバージョン手術を行う場合もある.
参考文献
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