Ramezan Jafari1, Patrick M Colletti2, Amin Saburi3. 1. Department of Radiology, Baqiyatallah University of Medical Sciences Faculty of Medicine, Tehran, Iran;Department of Chemical Injuries research center, Baqiyatallah University of Medical Sciences Faculty of Medicine, Tehran, Iran. 2. Department of Radiology, Keck School of Medicine of USC, Los Angeles, CA, USA. 3. Department of Chemical Injuries research center, Baqiyatallah University of Medical Sciences Faculty of Medicine, Tehran, Iran.