Monoblast
- Size : Large 20-30 µm
- N/C ratio= Medium to elevated
- Cytoplasm
- Extension : Abundant
- Basophilia : Moderately intense
- Number of granules : Rare
- Color of granules : Red = azurophils
- Membrane : Regular
- Nucleus
- Situation : Central
- Chromatin : Fine
- Nucleoli : Present
- Membrane : Regular
- Normal values : Absent in the blood
- Description / Pathology :
Large size cell, round nucleus and fine chromatin with nucleolus, slightly basophilic cytoplasm with abundant cytoplasmic veils, pseudopodia and fine "grain dust "grits . Sometimes concave nucleus.
Acute Monocytic Leukemia: AML5a and AML5b.