I Mohamad1, A H Abdul Karim2, H Mohamad3. 1. Irfan Mohamad (Corresponding author) M.D, M.Med (ORL-HNS) Department of Otorhinolaryngology- Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kota Bharu, Kelantan, Malaysia. irfankb@usm.my. 2. Ahmad Helmy Abdul Karim M.D, M.Med (Radiology) Department of Radiology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kota Bharu, Kelantan, Malaysia. 3. Hazama Mohamad M.D, M.Med (ORL-HNS) Department of Otorhinolaryngology-Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kota Bharu, Kelantan, Malaysia.