Abstract:C T上,左 S 3 領域に約1 5 mm の辺縁不整な胸膜陥入,s p i c u l aを伴った結節を認めた.術前診断で左肺腺癌, c T 1 N0 M0 :s t a g eI Aであり,左上葉切除 ND2 aを施行した.組織学的所見では,線維血管間質を欠く mi c r o p a p i l l a r y p a t t e r nを示していた.免疫組織学的所見では,T T F-1 (+) ,C K7 (+) ,S P-A (+) ,C K2 0 (−)であり原発性肺癌 と診断した.肺内・縦隔リンパ節に転移を認め,病理診断は p T 1 N2 M0 :s t a g eI I I Aであった.小型の肺結節でも,本 疾患のような組織型の存在も念頭におき,迅速な診断が望まれる. 索引用語:肺腺癌,リンパ節転移,免疫組織化学染色 mi c r o p a p i l l a r yp a t t e r n , p u l mo n a r ya d e n o c a r c i n o ma , l y mp hn o d eme t a s t a s i s i mmu n o h i s t o c… Show more
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