Purpose: The prognosis of relapsing primary CNS lymphoma (PCNSL) is poor.
目的：原发中枢的淋巴瘤复发后的预后不良。
Primary CNS lymphoma is a rare tumor accounting for 4% of all brain neoplasms.
原发性中枢神经系统淋巴瘤是一种少见肿瘤，约占全部脑肿瘤的4%。
Intraventricular primary CNS lymphoma is very rare, with few cases reported in the literature.
脑室内原发性中枢神经系统淋巴瘤非常罕见，仅可见少量文献报道。
The clinical presentation of CNS lymphoma is nonspecific and depends on the location of the neoplasm.
cns淋巴瘤的临床表现没有特异性，它依赖于肿瘤(新生物)发生的位置。
The clinical presentation of CNS lymphoma is nonspecific and depends on the location of the neoplasm.
cns淋巴瘤的临床表现没有特异性，它依赖于肿瘤(新生物)发生的位置。
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