Affiliation: | a Department of Otolaryngology, Head and Neck surgery, American University of Beirut Medical Center, Beirut, Lebanon b Department of Diagnostic Radiology, American University of Beirut Medical Center, Beirut, Lebanon c Neuroradiology, Department of Diagnostic Radiology, American University of Beirut Medical Center, Beirut, Lebanon d Otology/Neurotology, Department of Otolaryngology, Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon |