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Clinical staging systems and risk status
| Risk status | Modified Rai stage | Binet stage |
|---|---|---|
| Low risk | 0: Lymphocytosis | A: < 3 involved nodal areas |
| Intermediate risk | I: Lymphadenopathy | B: ≥ 3 involved nodal areas |
| II: Splenomegaly and/or hepatomegaly | ||
| High risk | III: Haemoglobin < 11 g/dL | C: Haemoglobin < 10 g/dL and/or platelets < 100 × 109/L |
