IL3RA and chronic myelogenous leukemia, BCR-ABL1 positive: CD123 has been found to be extensively overexpressed not only in AML but also in other hematological malignancies, such as blastic plasmacytoid dendritic cell neoplasm (BPDCN), MDS, systemic mastocytosis, chronic myeloid leukemia (CML), acute lymphoblastic leukemia (ALL), and hairy cell leukemia (HCL) [101,102,103,104,105,106,107].