The cause of<unk>  is currently unknown. An association between<unk>  and multiple myeloma has been suggested based on the observation of myeloma in 20% of<unk>  cases. However, a clonal genetic abnormality has not been detected in these myeloma-associated cases of<unk> , raising the possibility that the<unk>  is a reaction due to the neoplastic myeloma cells. The postulated cell of origin is a limited-potential, marrow-derived stem cell.
Chronic neutrophilic leukemia
Prolymphocytic leukemia
Leukemoid reaction
Chronic lymphocytic leukemia
Large granular lymphocytic leukemia
Mixed-phenotype acute leukemia
Acute monocytic leukemia
Acute myeloid leukemia