title: Reticulum cell sarcoma of brain in a patient with chronic lymphocytic leukemia.
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000150:complications*; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000150:complications*; D008228:Lymphoma, Non-Hodgkin / Q000150:complications*; D009378:Neoplasms, Multiple Primary