Abstract
目的: 探讨原发性心脏血管肉瘤(primary cardiac angiosarcoma,PCAS)临床病理及遗传学特点。 方法: 收集河南省人民医院确诊的PCAS共9例,采用免疫组织化学和二代测序技术检测蛋白和基因突变情况。 结果: 本组患者男性7例,女性2例;年龄18~53岁;6例位于右心房,2例位于心包,1例位于右房室沟。9例伴心包积液,3例伴胸腔积液,4例伴肺多发转移。细胞学见肿瘤细胞呈腺样、乳头状排列,上皮样形态,酷似腺癌细胞;组织学见肿瘤组织呈高-中等分化,见不规则血管腔样结构,瘤细胞鞋钉样或乳头状,部分区域呈片状、束状排列,细胞胖梭形,核深染不规则,异型性明显,病理性核分裂象易见;免疫标记显示肿瘤细胞强表达CD34、CD31、ERG。伴多发肺转移结节和浆膜腔积液病例存在TP53错义突变(p.R273C),且肿瘤细胞p53蛋白强阳性。 结论: PCAS早期即存在浆膜腔积液和肺多发转移,组织形态呈高-中等分化,细胞学极易误诊为腺癌,免疫组织化学有助于鉴别诊断;且TP53突变可能与肿瘤的高侵袭性生物学行为相关。.
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More From: Zhonghua bing li xue za zhi = Chinese journal of pathology
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