, Volume 255, Issue 6, pp 828-830
Date: 30 Apr 2008

Incidence of central nervous system involvement in chronic lymphocytic leukemia and outcome to treatment

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Leptomeningeal involvement in patients with CLL is relatively rare and the prognosis is usually considered to be poor. The authors reviewed all CLL patients treated in a tertiary referral center to assess the incidence and outcome of leptomeningeal involvement (LI) in CLL. They found an incidence of 1–2% of LI. Most of the patients with LI had a longterm survival, despite failure to clear the cerebrospinal fluid from tumor cells.