Spinal paraparesis due to leukemic meningitis in early-stage chronic lymphocytic leukemia.

Leukemic meningitis is a rare manifestation of chronic lymphocytic leukemia (CLL) and typically occurs in advanced stages. We report the case of a 71-year-old male in whom Binet A, Rai 1 stage CLL was diagnosed in June 2002. The stage called for a "watch and wait" strategy. Six months later the patient presented with paraparesis. Magnetic resonance imaging of the lumbar spine revealed no abnormalities. Lumbar puncture disclosed xanthochromic cerebrospinal fluid (CSF) with 1003 cells/microl, 95% atypical lymphocytes. Flow cytometry confirmed typical features of CLL. Intrathecal injections of methotrexate, cytosine arabinoside and corticosteroids did not substantially reduce the CSF cell count and failed to improve the neurological symptoms. Two weeks later the patient developed a pulmonary embolism complicated by fatal secondary pneumonia. Leukemic meningitis is a rare manifestation of CLL, especially in early stages. Selective spinal paraparesis as the first symptom of meningitis in CLL is even rarer and has been reported only once.