This document summarizes several myeloproliferative disorders including polycythemia, essential thrombocythemia, and myelofibrosis. It discusses the key diagnostic features of each condition such as elevated red blood cell counts, platelet counts, and bone marrow fibrosis. Distinguishing between primary and secondary polycythemia involves checking serum erythropoietin levels. Myelofibrosis is characterized by abnormal red blood cells on blood smear and a necessary bone marrow biopsy to show increased fibrosis. Myelodysplasia presents with pancytopenia but increased bone marrow cellularity and presence of ring sideroblasts.

1. Making the diagnosis in Hematology Part 2

4. Causes of secondary Polycythaemia

5. Diagnosis of PV