aetiology
Last reviewed 01/2018
The cause of CLL is unknown. There is no evidence that exposure to ionizing radiation, drugs or chemicals are associated with an increased risk (1).
There may be a genetic predisposition to CLL.
- an increase risk of CLL and other primary cancers have been observed in relatives of patients with CLL
- currently no genes responsible for increased risk of CLL has been identified (1)
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