Bone marrow infiltration patterns and their prognostic significance in chronic lymphocytic leukemia: correlations with clinical, immunologic, phenotypic, and cytogenetic data.
1984
Bone marrow biopsies were prospectively performed on 75 patients with chronic lymphocytic leukemia (CLL). There was a highly significant relationship (p less than 0.002) between clinical stages and bone marrow infiltration patterns. Ten (50%) of 20 patients with diffuse patterns died; the estimated median survival time for these patients was 87 months. In contrast, only six (11%) of 55 patients with nondiffuse patterns died; the estimated median survival time for these patients could not be computed. When both clinical stage and infiltration pattern were evaluated for survival, a highly significant association between clinical stage and survival time was still observed (p less than 0.003) whereas bone marrow infiltration pattern was no longer significant. A significant association was also observed between bone marrow infiltration patterns and absolute lymphocyte counts (p less than 0.0005), Fc-receptor-positive cells (p less than 0.002), 3H-thymidine uptake of leukocytes (p less than 0.01), serum alkalin...
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