Brief Report: Natural History of Individuals With Clinically Recognized Monoclonal B-Cell Lymphocytosis Compared With Patients With Rai 0 Chronic Lymphocytic Leukemia
Brief Report: Natural History of Individuals With Clinically Recognized Monoclonal B-Cell Lymphocytosis Compared With Patients With Rai 0 Chronic Lymphocytic Leukemia
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DOI:
10.1200/jco.2008.21.2704
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发表时间:
2009-08-20
影响因子:
45.3
通讯作者:
Hanson, Curtis A.
中科院分区:
文献类型:
--
作者:
Shanafelt, Tait D.;Kay, Neil E.;Hanson, Curtis A.
PurposeThe diagnosis of monoclonal B-cell lymphocytosis (MBL) is used to characterize patients with a circulating population of clonal B cells, a total B-cell count of less than 5 X 10(9)/L, and no other features of a B-cell lymphoproliferative disorder including lymphadenopathy/organomegaly. The natural history of clinically identified MBL is unclear. The goal of this study was to explore the outcome of patients with MBL relative to that of individuals with Rai stage 0 chronic lymphocytic leukemia (CLL).Patients and MethodsWe used hematopathology records to identify a cohort of 631 patients with newly diagnosed MBL or Rai stage 0 CLL. Within this cohort, 302 patients had MBL (B-cell counts of 0.02 to 4.99 X 10(9)/L); 94 patients had Rai stage 0 CLL with an absolute lymphocyte count (ALC)