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起源于胸腺囊肿的腺癌2例及文献复习 被引量:2

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摘要 目的探讨胸腺囊肿恶变为腺癌的临床病理学特征、诊断及鉴别诊断。方法采用免疫组化En Vision法对2例胸腺囊肿恶变为腺癌进行检测并复习相关文献。结果 2例均为男性,年龄分别为64岁和50岁,肿块均位于前纵膈。镜检:例1,纤维囊壁组成的囊腔内异型细胞呈腺状、管状结构排列,与囊壁内单层柱状上皮有移行。周围可见残余胸腺组织;例2,单层柱状上皮形成的囊肿,良性上皮移行为异型上皮排列成复层、腺样结构。周围梭形细胞被粗大的玻璃样变的胶原纤维分隔成实性团块状或拼图玩具样,实性细胞周边可见片状淋巴细胞浸润,实性细胞团内可见腺样结构。免疫表型:例1,CK7在囊壁内单层柱状上皮中(+),与之移行的异型上皮中(-),CK20、Villin的表达则与之相反。例2,异型腺样细胞CD5、EMA和TTF1均(+),Ki-67增殖指数约10%,梭形细胞p63和TTF1均(+),CD20和CD117均(灶+),Ki-67增殖指数约1%。结论胸腺腺癌非常罕见,可起源于胸腺囊肿,其独特的临床病理学特征及免疫表型有助于诊断及鉴别诊断。
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2015年第8期923-925,共3页 Chinese Journal of Clinical and Experimental Pathology
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参考文献23

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