Large B-cell non-Hodgkin lymphoma relapsing with meningeal localization

![Figure][1] A 76-year-old woman presented with diffuse large B-cell non-Hodgkin lymphoma (NHL), stage III A, low-intermediate International Prognostic Index. The disease involved the retroperitoneum, laterocervical, and supraclavicular regions. Bone marrow and other organ sites were negative