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Extramedullary hematopoiesis (EMH) occurs as a complication of hematologic disorders such as myelofibrosis, sickle cell anemia and thalassemia. The extramedullary tissue usually involves liver, spleen and lymph nodes, less frequently the chest. We present a recent case of a man with myeloproliferative neoplasm who developed pulmonary hemorrhage secondary to EMH in the lung and pulmonary artery. Radiation therapy was considered the best approach, but it didn’t work and the patient died a week after radiation therapy was completed. We also review herein the present literature.