RT Journal Article SR Electronic T1 Massive Hemothorax in a Beta-Thalassemic Patient Due to Spontaneous Rupture of Extramedullary Hematopoietic Masses: Diagnosis and Successful Treatment JF Respiratory Care FD American Association for Respiratory Care SP 272 OP 276 VO 51 IS 3 A1 Pornsuriyasak, Prapaporn A1 Suwatanapongched, Thitiporn A1 Wangsuppasawad, Narathip A1 Ngodngamthaweesuk, Montian A1 Angchaisuksiri, Pantep YR 2006 UL http://rc.rcjournal.com/content/51/3/272.abstract AB Intrathoracic extramedullary hematopoiesis is an unusual but well-described entity. The condition is typically found in patients who have chronic hemolytic anemias, especially thalassemia. We report a case of a 38-year-old man with underlying beta thalassemia/hemoglobin E who developed intrathoracic extramedullary hematopoiesis. The hematopoietic masses spontaneously ruptured, resulting in massive hemothorax. The condition was confirmed by video-assisted thoracoscopy and successfully treated with surgery, hydroxyurea, and radiation.