Meningeal leukemia complicating chronic lymphocytic leukemia.
D001402:B-Lymphocytes / Q000502:physiology; D006801:Humans; D007938:Leukemia / Q000150:complications*; D007945:Leukemia, Lymphoid / Q000150:complications*; D008577:Meningeal Neoplasms / Q000150:complications*; D013601:T-Lymphocytes / Q000502:physiology