Variants | Size (N) | Percentage (%) |
Deviation of nasal septum | 46 | 17.6 |
Sinus septum | 35 | 134 |
Concha bullosa | 28 | 10.7 |
Sinus agenesia | 9 | 3.4 |
Sphenoide procidence of internal carotid | 7 | 2.7 |
Maxillary sinus Hypoplasia | 7 | 2.7 |
Haller’s Cell | 6 | 2.3 |
Spur of the nasal septum | 4 | 1.5 |
Pneumatization of the unciform process | 3 | 1.1 |
Asymmetry of the ethmoidal roof | 2 | 0.8 |
Enlarged ethmoid bubble | 1 | 0.4 |
Hypopneumatization of frontal sinuses | 1 | 0.4 |