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今月の特集2 乳癌病理診断の進歩

乳腺良悪性の鑑別に有用な免疫染色

著者: 前田一郎13 小穴良保2 高木正之1

所属機関: 1聖マリアンナ医科大学 病理学 2聖マリアンナ医科大学病院 病理診断科 3乳腺病理・研究診断支援グループ

ページ範囲:P.450 - P.458

Point

●HMWKは乳腺の良悪性の鑑別に有用である.良性過形成性病変ではモザイク状に陽性で,低悪性度悪性病変では陰性となる.

●シナプトフィジン(syn)は悪性のマーカーとして有用である.わずかでも陽性であれば悪性を念頭に置き,腫瘍細胞の1%以上の陽性細胞を確認したときには悪性を疑い,10%を超える場合には悪性を強く疑う.陰性の場合は良悪性の判定はできない.

●エストロゲン受容体(ER)は乳管内乳頭状病変,非浸潤性乳管癌(DCIS),papillary typeと乳管内乳頭腫(IDP)の鑑別に有用である.DCISではhomogeneousとなり,IDPではheterogeneousとなる.

参考文献

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出版社:株式会社医学書院

電子版ISSN:1882-1367

印刷版ISSN:0485-1420

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