Round or oval in shape and smaller than metamyelocyte. They can be found in low percentage in the peripheral blood smear. The nucleus appears as a rod with even breadth.
Size:
10-12 µm.
Cytoplasm:
Light acidophilic and contains secondary granules characteristic for some species of granulocytes.
The granules can be soft neutrophilic, eosinophilic or rougher basophilic.
Nucleus:
This cell has a deeply indented U-shaped nucleus in which the chromatin is coarse and clumped. They are often described as "stab" (rod-like) forms. The nucleus is of kidney-bean shape or rod shape of equal thickness. The chromatin is stained dark red or red blue.
