RT Book, Section A1 Lichtman, Marshall A. A1 Kaushansky, Kenneth A1 Prchal, Josef T. A1 Levi, Marcel M. A1 Burns, Linda J. A1 Armitage, James O. SR Print(0) ID 1133364284 T1 Primary Myelofibrosis T2 Williams Manual of Hematology, 9e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259642470 LK hemonc.mhmedical.com/content.aspx?aid=1133364284 RD 2024/04/20 AB Primary myelofibrosis is a chronic myeloid neoplasm that originates in mutations in a multipotential hematopoietic cell, possibly the lymphohematopoietic stem cell. The disease is characterized by (1) anemia; (2) splenomegaly; (3) increased CD34+ cells, immature granulocytes, erythroid precursors, and teardrop-shaped red cells in the blood; (4) increased dysmorphic megakaryocytes, the cytokines from which induce marrow fibrosis; and (5) osteosclerosis.