Chronic lymphocytic leukemia clinical staging: Difference between revisions
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Revision as of 17:46, 11 September 2012
Chronic lymphocytic leukemia Microchapters |
Differentiating Chronic lymphocytic leukemia from other Diseases |
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Chronic lymphocytic leukemia clinical staging On the Web |
American Roentgen Ray Society Images of Chronic lymphocytic leukemia clinical staging |
Directions to Hospitals Treating Chronic lymphocytic leukemia |
Risk calculators and risk factors for Chronic lymphocytic leukemia clinical staging |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Overview
Classification
Clinical staging
Staging is done with the Rai staging system and the Binet classification (see details[1]).
Rai staging system
Stage 0 | Absolute lymphocytosis (>15,000/mm3) without adenopathy, hepatosplenomegaly, anemia, or thrombocytopenia. |
Stage 1 | Absolute lymphocytosis with lymphadenopathy without hepatosplenomegaly, anemia, or thrombocytopenia. |
Stage 2 | Absolute lymphocytosis with either hepatomegaly or splenomegaly with or without lymphadenopathy. |
Stage 3 | Absolute lymphocytosis and anemia (hemoglobin <11 g/dL) with or without lymphadenopathy, hepatomegaly, or splenomegaly. |
Stage 4 | Absolute lymphocytosis and thrombocytopenia (<100,000/mm3) with or without lymphadenopathy, hepatomegaly, splenomegaly, or anemia. |
Binet Classification
Clinical stage A | No anemia or thrombocytopenia and fewer than three areas of lymphoid involvement (Rai stages 0, I, and II). |
Clinical stage B | No anemia or thrombocytopenia with three or more areas of lymphoid involvement (Rai stages I and II). |
Clinical stage C | Anemia and/or thrombocytopenia regardless of the number of areas of lymphoid enlargement (Rai stages III and IV). |
The Binet classification integrates the number of nodal groups involved with the disease with bone marrow failure. Its major benefit derives from the recognition of a predominantly splenic form of the disease, which may have a better prognosis than in the Rai staging, and from recognition that the presence of anemia or thrombocytopenia has a similar prognosis and does not merit a separate stage. Neither system separates immune from nonimmune causes of cytopenia. Patients with thrombocytopenia or anemia or both, which is caused by extensive marrow infiltration and impaired production (Rai III/IV, Binet C) have a poorer prognosis than patients with immune cytopenias.[4] The International Workshop on CLL has recommended integrating the Rai and Binet systems as follows: A(0), A(I), A(II); B(I), B(II); and C(III), C(IV).
References
- ↑ National Cancer Institute. "Chronic Lymphocytic Leukemia (PDQ®) Treatment: Stage Information". Retrieved 2007-09-04.