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