Abstract
目的 讨论具有微绒毛特征的CD30+弥漫大B细胞淋巴瘤的临床、病理特征,提高对该病的认识与诊断水平。 方法 对1例76岁女性的颈部肿大的淋巴结进行组织学、免疫组织化学、EBER原位杂交和电子显微镜观察,并复习相关文献。 结果 组织病理学示,淋巴结正常结构消失,形态单一的、胞质丰富的异型细胞呈片状增生,部分区域可见异型细胞淋巴窦内生长模式。免疫组织化学示,异型细胞CD20+、CD79a+、PAX-5+、CD10+、bcl-6+、MUM-1+,40%肿瘤细胞CD30+,80%肿瘤细胞Ki-67+,肿瘤细胞不表达CK、CD3、CD5、CD15、CD56、EMA、bcl-2。电子显微镜观察,瘤细胞体积大,胞质丰富,瘤细胞表面大量微绒毛,微绒毛长短不一,粗细较均匀,少数有分枝。 结论 微绒毛淋巴瘤是一类具有独特形态学改变、免疫组织化学表型和超微结构的淋巴瘤。
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