Source:http://linkedlifedata.com/resource/umls/id/C0369715
CSP: precursor in the granulocytic series; in this stage, differentiation into specific cytoplasmic granules has begun.,NCI: A cell derived from a promyelocyte. It differentiates into a metamyelocyte. It has a diameter of 10-18 micrometer, and an oval or round nucleus with finely granulated chromatin.