| A | B |
|---|
| Myeloblast | N:C HIGH (0.2 - 1.5% in BM) CYTOPLASM: deep blue NUCLEUS: round or oval; delicate, lacy chromatin, nucleoli |
| Promyelocyte | N:C High but less than myeloblast (2-4% in BM) CYTOPLASM: deep blue with appearance of PRIMARY/AZUROPHILIC/NONSPECIFIC granules NUCLEUS: round or oval, chromatin lacy but more condensed than blast; nuceoli present |
| Myelocyte | N:C Decreased from promyelocyte (6-8% in BM) CYTOPLASM: light pink but may have patches of blue-appearance of secondary/specific granules at this stage NUCLEUS: round; chromatin more condensed than blast; nucleoli usually absent |
| Metamyelocyte | N:C decreased (9-25% in BM) CYTOPLASM: pink with predominance of secondary granules NUCLEUS: chromatin condensed, stains dark purple, kidney bean shape |
| Band (nonsegmented) | N:C decreased (9-15% in BM) CYTOPLASM: pink NUCLEUS: chromatin is pyknotic at ends of horseshoe shaped nucleus - stains dark purple |
| Polymorphonuclear (Seg, Poly, PMN) | N:C decreased (6-12% in BM) CYTOPLASM: Pink NUCLEUS: segmented into 2-5 lobes, chromatin condensed-stains dark purple |
