中枢神经系统淋巴瘤(CNSL)是一种少见的淋巴组织或结外淋巴瘤,多发生于非霍奇金淋巴瘤(NHL)。由于NHL的发生率有逐年上升的趋势,加之CNSL的临床表现不典型性和复杂多变的特点,极易造成误诊误治。因此,提高中枢神经系统非霍奇金淋巴瘤的诊治水平备受临床医生的关注。1CNSL的发病 Central Nervous System Lymphoma (CNSL) is a rare form of lymphoid tissue or extranodal lymphoma that occurs mostly in non-Hodgkin’s lymphoma (NHL). As the incidence of NHL has been increasing year by year, coupled with CNSL’s clinical manifestations of atypia and complex and volatile characteristics, can easily lead to misdiagnosis and mistreatment. Therefore, to improve the diagnosis and treatment of central nervous system non-Hodgkin’s lymphoma has attracted the attention of clinicians. The incidence of 1CNSL