Template:Polycythemia DDX

Polycythemia (Erythrocytosis)

• Primary polycythemia (myeloproliferative disorders)
  • Polycythemia vera
  • Essential thrombocytosis
  • Chronic myelogenous leukemia (CML)
  • Leukemoid Reaction
  • Myelofibrosis
• Secondary polycythemia (due to increased EPO)
  • Chronic hypoxemia (e.g. COPD, physiologic altitude adaptations or chronic mountain sickness)
  • Carboxyhemoglobin (chronic smokers)
  • Renal cyst or hydronephrosis
  • EPO-secreting tumors (RCC, hepatocellular carcinoma)
  • Anabolic steroid abuse
  • Abnormal hemoglobins