Hairy cell leukaemia
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Rare but often very treatable with the purine analogue cladrabine
Look long and hard for them in all patients with cytopenia(s) especially where there is also splenomegaly
These lymphocytes:
- are medium sized
- have fine irregular projections
- contain a condensed nuclear chromatin structure and absent nucleoli
- are often very few in the peripheral blood
What is the classical pattern by immunophenotyping/flow cytometry?
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