Monocytosis

• Monocytosis -is an increase in numbers of monocytes (haematogenous macrophages) in the blood.

• Occurs:
  • In conjunction with neutrophilia in fear, excitement etc.
  • In the chronic stages of bacterial disease.
• Monocytes very rarely behave as macrophages in the blood.

• • However, this is seen in cases of severe intravascular haemolysis of red blood cells where remnants of the RBC's are found in their cytoplasm.