Promegakaryocyte
A promegakaryocyte is a precursor cell for a megakaryocyte, arising from a megakaryoblast.
The developmental stages of the megakaryocyte are:
CFU-Me → megakaryoblast → promegakaryocyte → megakaryocyte.
When the megakaryoblast matures into the promegakaryocyte, it undergoes endoreduplication and forms a promegakaryocyte which has multiple nuclei, azurophilic granules, and a basophilic cytoplasm. The promegakaryocyte has rotary motion, but no forward migration.
