A 54-year-old woman presented with hepatosplenomegaly, anemia, neutropenia and lymphocytosis. Most peripheral blood lymphocytes had the surface antigens T3+, Leu11+ and were morphologically large granular lymphocytes. Bone marrow presented 60 % lymphoid infiltration. Treatment with chlorambucil produced complete reversal of hepatosplenomegaly, anemia, neutropenia and lymphocytosis, and reduction of marrow infiltration. The patient is well 12 months after discontinuation of therapy.
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