The classification and diagnostic criteria of the erythrocytoses (polycythaemias)

@article{Messinezy1999TheCA,
  title={The classification and diagnostic criteria of the erythrocytoses (polycythaemias)},
  author={Maria Messinezy and T C Pearson},
  journal={Clinical and laboratory haematology},
  year={1999},
  volume={21 5},
  pages={309-16}
}
The term 'erythrocytosis' has advantages over 'polycythaemia' to describe patients with a raised haematocrit (PCV) and deserves to be more widely used. Measurement of red cell mass (RCM) and its relation to that expected for an individual's height and weight permits initial subdivision of erythrocytosis into absolute (increased RCM) or apparent normal RCM. Absolute erythrocytosis may be primary (intrinsically abnormal marrow erythropoiesis) or secondary (increased erythropoietin drive in… CONTINUE READING