Binet staging system for chronic lymphocytic leukemia
Binet staging system for chronic lymphocytic leukemia
Stage
Description
A
Two or less lymphoid bearing areas enlarged*
B
Three or more lymphoid bearing areas enlarged*
C
Presence of anemia (hemoglobin <10 g/dL) or thrombocytopenia (platelet count <100,000/microL)
* Five lymphoid bearing areas are possible: cervical, axillary, inguino-femoral, spleen, and liver.
Revised from: Binet JL, Auquier A, Dighiero G, et al. A new prognostic classification of chronic lymphocytic leukemia derived from a multivariate survival analysis. Cancer 1981; 48:198.