1 | Nakano et al. (16) | 65 | M | Primary CNS lymphoma | Low | High |
2 | Nakano et al. (16) | 58 | F | Malignant astrocytoma | Low | High |
3 | Nakano et al. (16) | 58 | F | Metastatic brain tumor (histology was not described) | Low | High |
4 | Ohkawa et al. (18) | 73 | M | Primary CNS lymphoma | High | High |
5 | Nishizawa et al. (17) | 44 | M | Metastatic brain tumor (metastasis from bronchial carcinoid tumor) | High | High |
6 | Kitanaka et al. (15) | 42 | F | Secondary CNS lymphoma (metastasis from breast lymphoma) | High | High |
7 | Takano et al. (19) | 34 | M | Primary CNS melanoma | High | High |
8 | Yoshizawa et al. (20) | 37 | F | Primary CNS lymphoma | High | High |