Abstract
The term "B-cell small lymphocytic lymphoma" (B-SLL) is generally reserved for patients with lymph node masses that show the histology and immunophenotype of B-cell chronic lymphocytic leukemia (B-CLL) but who are not leukemic. The aim of our study was to define clinical factors that predict for survival in B-SLL. Thirty-nine patients with B-SLL and with less than 5,000 mature-appearing lymphocytes/microL in the peripheral blood were studied. The median follow-up of survivors was 6.6 years (range, 1.6-12.3 years). The estimated 5-year overall survival (OS) and failure-free survival (FFS) were 66% and 23%, respectively. In the univariate analysis, significant adverse predictors for OS were age > or =60 years, B symptoms, elevated serum LDH, low hemoglobin (<11 g/dL), and high International Prognostic Index (IPI) score (3-5). In multivariate analysis, the IPI score was the only significant predictor of OS. Anemia and B symptoms were additionally predictive of poor OS in patients with low IPI scores.
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