外周T细胞淋巴瘤继发弥漫大B细胞淋巴瘤一例并文献复习

摘要

目的 探讨外周T细胞淋巴瘤(PTCL)继发弥漫大B细胞淋巴瘤(DLBCL)的诊治方法.方法 报道1例PTCL继发DLBCL病例的诊治经过,分析该例患者的临床特点、治疗反应,复习文献探讨该类疾病的机制及预后.结果 患者诊断PTCL非特指型(PTCL-NOS)明确,治疗后出现以EB病毒(EBV)阴性DLBCL为表现的第二肿瘤,其临床特点及发病间隔与之前国外报道类似,可能涉及肿瘤细胞、微环境及治疗等多方面因素.该例患者初步治疗有效,有待进一步随访观察.结论 PTCL-NOS继发EBV阴性DLBCL非常罕见,发病机制和治疗效果有待进一步探索.%Objective To investigate the diagnosis and treatment of sequential diffuse large B-cell lymphoma (DLBCL) after peripheral T-cell lymphoma (PTCL).Methods A case with sequential DLBCL after PTCL was reported,and the characteristics and responses of this case were analyzed.The previous literature was reviewed in order to explain the mechanism and prognosis of such type of disease.Results This patient was diagnosed as PTCL not otherwise specified (PTCL-NOS) definitely,but after a period of treatment,DLBCL was developed as a second tumor.The characteristics and onset interval were just similar to those described in the literature,in which the mechanisms were mentioned as common effects of tumor cell,microenviroment and therapies.This patient got effects through the initial treatment,but considering the poor outcome by former researchers,the prognosis needed to be closely followed up.Conclusion Sequential development of EBV-unrelated DLBCL after PTCL-NOS is very rare,and the mechanism,therapy and prognosis need further investigation.