Lymphoma and leukemia of the central nervous system.
D001921:Brain / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D002493:Central Nervous System Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D007938:Leukemia / Q000000981:diagnostic imaging*; D008223:Lymphoma / Q000000981:diagnostic imaging*; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed