组织细胞肉瘤2例临床病理分析

Chinese Journal of Clinical and Experimental Pathology(2010)

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Abstract
目的探讨组织细胞肉瘤(histiocytic sarcoma,HS)的临床病理特征。方法标本采用常规石蜡切片,HE染色,EnVision免疫组化两步法染色。结果本组病例发病部位包括胃、淋巴结、脾。形态学特点为肿瘤细胞弥漫浸润,互不黏附。瘤细胞较大,圆形或卵圆形,核大,核仁清晰。胞质丰富,红染。瘤细胞表达一种或多种组织细胞抗原:CD68、ly-sozyme、CD163,还常表达CD45、CD45RO和CD4。结论 HS为一种罕见的显示成熟组织细胞形态学和免疫表型特征的恶性肿瘤,其诊断是在形态学的基础上依靠免疫组化染色进行排除诊断。
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