From the Departments of Radiology Baskent University, Ankara, Turkey
2.Department of Otorhinolaryngology-Head and Neck Surgery Baskent University, Ankara, Turkey
3.From the Departments of Radiology, and Otolaryngology-Head and Neck Surgery, Baskent University, Ankara, Turkey
4.Baskent University Faculty of Medicine Department of Otorhinolaryngology, Ankara, Turkey & Head and Neck Surgery