| Disease | primary central nervous system lymphoma |
| Comorbidity | C0003873|rheumatoid arthritis |
| Sentences | 1 |
| PubMedID- 23705580 | We report the first case of primary central nervous system lymphoma (pcnsl) developing in a patient with rheumatoid arthritis (ra) undergoing low-dose methotrexate therapy (ld-mtx). |
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