The cause that directly leads to<unk>  is unclear. Exposure to radiation, chemical exposure, virus and genetics are the primary reasons proposed by researchers.
Biphenotypic acute leukaemia
Aggressive NK-cell leukemia
Mixed-phenotype acute leukemia
Leukemoid reaction
Atypical chronic myeloid leukemia
Prolymphocytic leukemia
T-cell prolymphocytic leukemia
B-cell prolymphocytic leukemia