Help me code for diagnosis year :
Primary myelofibrosis begins with a hypercellular marrow with absence of overt fibrosis and often with early increase in reticulin fibers. This is call the "prefibrotic" stage of primary myelofibrosis.
About 50% exhibit JAK2 gene mutation, but the test is not specific enough to provide a definitive diagnosis. This disease is diagnosed clinically (a diagnosis of exclusion). The physician correlates information from JAK2 (if available), the equivocal results of the bone marrow and blood work with the clinical symptoms to arrive at a diagnosis of primary myelofibrosis.
In the early stages of disease, CD34 may be slightly increased in the bone marrow but not in the peripheral blood. In the later stages CD34 will appear in large numbers. This is peculiar to Primary myelofibrosis and does not occur in Polycythemia vera or Essential thrombocythemia.
Blood transfusions are given to correct anemia and should not be listed as treatment. Splenectomy may be done if the patient is symptomatic
Aspirin was previously documented as treatment for this disease. This was found to be incorrect. Treatment has been updated based on the NCI website (updated 6/12/15).