There was no evidence of an extracranial non-Hodgkin lymphoma, so the conclusion was that this represented a primary central nervous system lymphoma (PCNSL).

• 目前还没有颅外非霍奇金淋巴瘤的证据，而且这是一个原发性中枢神经系统淋巴瘤(PCNSL)的患者。