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摘要:套细胞淋巴瘤(Mantle cell lymphoma,MCL)占所有非霍奇金淋巴瘤的4%~9%,其特征是表达CD5、Cyclin D1以及t(11;14)(q13; q32)易位。但是,约5%的MCL缺乏CD5的表达且特征不明显。本文展示了58例CD5阴性(CD5-)MCL患者,并与一组212例典型的CD5阳性(CD5*)MCL病例进行比较。研究组男性39例,女性19例,中位年龄66岁(年龄范围36~88岁)。与CD5阳性(CD5+)MCL相比,CD5-MCL患者有较低的男女比例(P=0.006)和更高的“非结节性骨髓累犯”方式(P=0.01)。其他所有临床病理特征,包括SOX11表达率两组间相似。使用相同的治疗方案,与CD5阳性(CD5+)MCL_患者相比,CD5-MCL患者无进展生存期(progression-free survival,PFS)明显更长(P=0.01)且总体生存期(overall survival,OS)也更长的趋势(P=0.078)。单变量分析显示了众所周知的不良预后因素,只有套细胞淋巴瘤国际预后指数是不良的预后因素,而母细胞样/多形性形态和Ki-67高表达均与CD5-MCL患者的预后无关。多因素Cox回归分析显示,在MCL患者中CD5表达是PFS的独立预后因子(P=0.031),但并不是OS的独立预后因子。综上所述,尽管两组患者在临床病理特征上有很大程度的相似,但CD5-MCL患者比CD5+MCL患者有较好的预后。CD5-MCL可能代表MCL的一种独立亚型,需要纳入CD5+的小B细胞淋巴瘤的鉴别诊断中。
关键词:套细胞淋巴瘤,CD5-,预后,总体生存,无进展生存期
(Am J Surg Pathol 2019;43:1052-1060)
美国外科病理学杂志中文版2020年第一期摘要NO.8
(郭晓静 翻译 成志强 审校)
The American Journal of Surgical Pathology 中文版版权说明:
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