NCCN非常に高リスク皮膚扁平上皮癌に対する全周縁制御切除術と垂直断端評価の比較
David M Wang1, Nina A Ran1, Emily E Granger2
11Department of Dermatology, Brigham and Women's Hospital, Boston, MA.
Journal of the National Comprehensive Cancer Network : JNCCN
|February 11, 2026
まとめ
NCCN非常に高リスク皮膚扁平上皮癌(cSCC)の管理において、Mohs微細手術または末梢・深部全周縁評価(MMS/PDEMA)は、標準的な垂直断端評価切除術(SEVMA)よりも優れている。MMS/PDEMAは再発、転移、疾患特異的死亡を大幅に減少させる。
科学分野:
- 皮膚科
- 外科腫瘍学
- がん研究
背景:
- 皮膚扁平上皮癌(cSCC)は一般的な皮膚がんであり、攻撃的な腫瘍の一部は再発および転移のリスクを伴う。
- 現在の治療ガイドラインでは、非常に高リスクなcSCCに対してMohs微細手術または末梢・深部全周縁評価(MMS/PDEMA)を推奨している。
- 標準的な垂直断端評価切除術(SEVMA)は代替的な外科的アプローチである。
研究 の 目的:
- 非常に高リスクなcSCCの管理におけるNCCNのMMS/PDEMA推奨を検証する。
- 大規模な多国籍コホートにおいて、再発、転移、疾患特異的死亡の予防におけるMMS/PDEMAとSEVMAの有効性を比較する。
主な方法:
- 12の国際的な施設で、MMS/PDEMAまたはSEVMAで治療された2,752例の一次NCCN非常に高リスクcSCCを対象とした多施設コホート研究。
- 両治療群間のベースライン患者および腫瘍特性を均衡させるために、傾向スコアマッチング分析を用いた。
- 主要評価項目は、局所再発(LR)、所属リンパ節転移(NM)、遠隔転移(DM)、疾患特異的死亡(DSD)とした。
主要な成果:
- 傾向スコアマッチング後、SEVMAはMMS/PDEMAと比較して有害事象発生率が2倍高かった。3年累積罹患率はSEVMA群で有意に高かった:LR(12.5% vs 5.9%)、NM(11.6% vs 6.0%)、DM(4.3% vs 1.9%)、DSD(6.2% vs 3.3%)。
結論:
- 本研究結果は、非常に高リスクなcSCCの管理においてMMS/PDEMAを好ましい外科的アプローチとして推奨するNCCNガイドラインを支持する。
- MMS/PDEMAは、SEVMAと比較して、局所再発、転移、がん特異的死亡率を減少させる上で優れた有効性を示す。
- 本研究は、攻撃的なcSCC管理における周縁制御外科的技術による患者予後の改善に関する堅牢なエビデンスを提供する。
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