obsolete acute eosinophilic leukemia true eosinophilic leukemia, acute leukemia, acute eosinophilic eosinophilic leukemias, acute MESH:D015472 MONDO:0043881 acute eosinophilic leukemia OBSOLETE. A poorly defined concept which at best is described as an extremely rare entity, possibly related to various subtypes of acute myeloid leukemia with abnormal eosinophils. (WHO, 2001) acute eosinophilic leukemias leukemias, acute eosinophilic NCIT:C26813 SCTID:277604002