报道原发性中枢神经系统 B 细胞淋巴瘤(CPML)9例。男6例,女3例,年龄36～67岁,病程2周～2个月。病灶位于额叶1例,小脑半球1例,高颈髓1例。全部行手术治疗,肿瘤全切除7例,部分切除2例。术后7例行放疗和/或化疗。随访2个月～4年,5例健在,2例中残,1例死亡,1例失随访。对本病的类型、发病机理、临床特点、治疗方法和预后进行了简单的讨论。 Reported 9 cases of primary central nervous system B cell lymphoma (CPML). 6 males and 3 females, aged 36 to 67 years old, duration of 2 weeks to 2 months. Lesions in the frontal lobe in 1 case, cerebellar hemisphere in 1 case, 1 case of high cervical cord. All the patients were surgically treated, 7 cases were completely excised and 2 cases were partially resected. Seven patients underwent radiotherapy and / or chemotherapy. Followed up for 2 months to 4 years, 5 cases were alive, 2 cases were disabled, 1 died, 1 case missed follow-up. The types of the disease, pathogenesis, clinical features, treatment and prognosis of a simple discussion.