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PCNSL是一种少见的肿瘤。本文目的是评价PCNSL的缓解率、失败模式、生存率等与治疗前预后因素、治疗情况的关系。 患者中男性33例、女性29例,中位年龄60岁(6～87岁),WHO行为评分85％患者≥2级,病灶单发40例、多发21例,幕上病变47例、幕下6、幕上加幕下9例,病灶直径<40mm 18例、≥40mm 28例。活检证实均为中度或重度恶性B细胞非霍奇金淋巴瘤。全部病人使用地塞米松及颅脑放疗。放疗用6MV直线加速器二侧相对野照射,全脑中位剂量45Gy(20～50.8Gy),1.8Gy/次(1.8～4Gy/次),靶体积总剂量中位50.4Gy(20～
PCNSL is a rare tumor. The purpose of this paper is to evaluate the relationship between PCNSL remission rate, failure mode, survival rate and pre-treatment prognosis and treatment. Among the patients, 33 were male and 29 were female, with a median age of 60 years (range, 6 to 87 years). The WHO behavioral score was 85% in patients with grade 2 or higher, 40 lesions were single, 21 were multiple, 47 were supratentorial lesions, , The curtain plus 9 under the curtain, lesion diameter <40mm 18 cases, ≥ 40mm 28 cases. Biopsy confirmed moderate or severe malignant B cell non-Hodgkin’s lymphoma. All patients using dexamethasone and cranial radiotherapy. Radiation therapy was performed on both sides of the 6MV linear accelerator with a relative dose of 45Gy (20 ~ 50.8Gy), 1.8Gy / time (1.8 ~ 4Gy / time) and 50.4Gy (20 ~