has part has part characteristic of part of inheres in part of has modifier erythroid lineage cell Abnormal bone marrow cell morphology Abnormal erythroid lineage cell morphology 2012-09-16T07:14:03Z HP:0012130 An anomaly of erythroid lineage cells, that is, of the erythropoietic cells in the lineage leading to and including erythrocytes. UMLS:C4020862 Abnormality of cells of the erythroid lineage Proerythroblasts are the earliest recognizable erythroid precursors. They are followined during the process of hematopoiesis by basophilic erythroblasts, polychromatic (polychromatophilic) erythroblasts, orthochromatic erythroblasts (normoblasts), reticulocytes, and finally mature erythrocytes (red blood cells). This term encompasses structural anomalies of erythroblast precursors in the bone marrow. morphology abnormal