abnormal myelopoiesis MP:0000169 MP:0001601 MPheno.ontology abnormal myeloid cell differentiation anomaly in the process of, or atypical formation of myeloid cells from the pluripotent hematopoietic stem cells in the bone marrow from myeloid stem cells, including the production of leukocytes in blood, such as monocytes and granulocytes and precursor cells for macrophage and dendritic cells found in the lymphoid tissue myelopoiesis abnormalities abnormal leukopoiesis