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乳腺癌转移至胸腺瘤内一例 被引量:1

Breast carcinoma metastasizing to thymoma: report of a case
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摘要 胸腺瘤是前纵隔内常见的原发肿瘤,但是其内继发肿瘤转移比较罕见。现报道1例发生于前纵隔的瘤对瘤转移——乳腺癌转移至B2型胸腺瘤内。患者女,55岁,因"发现纵隔肿物2年,近期肿物增大1个月"就诊。肿物最大径6 cm,有包膜,灰白色、实性、质地坚实。显微镜下,绝大部分区域形态符合B2型胸腺瘤,即在大量未成熟淋巴细胞背景上散在巢团状分布肿瘤性上皮细胞,上皮细胞呈圆形或多角形,细胞核大而疏松,可见核仁。但局部可见形态与以上形态完全不同的小灶上皮细胞巢,巢内细胞较胸腺瘤上皮细胞大,呈圆形或多边形,异型性明显,核质比大,染色质粗糙,核仁明显,免疫组织化学表达广谱细胞角蛋白、细胞角蛋白7、雌激素受体、GATA3和GCDFP15,且上皮细胞膜抗原部分阳性。诊断为(前纵隔)乳腺癌转移至B2型胸腺瘤内。
作者 张成斌 于微 姚伟凯 王帅 闫旭 Zhang Chengbin;Yu Wei;Yao Weikai;Wang Shuai;Yan Xu(Department of Pathology,the First Hospital of Jilin University,Changchun 130021,China;Department of Echocardiography,the First Hospital of Jilin University,Changchun 130021,China;Department of Pathology,Jilin Cancer Hospital,Changchun 130012,China)
出处 《中华病理学杂志》 CAS CSCD 北大核心 2020年第2期195-197,共3页 Chinese Journal of Pathology
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