Agger nasi is the second most common anatomical variant.
A prominent
agger nasi cell produces a distinct bulge anterior to anterior attachment of middle turbinate & may even displace the anterior attachment of middle turbinate posterosuperiorly.
The basal lamella of the ethmoid, the ethmoid strut, the anterior and posterior ethmoid cells, the medial wall of the ethmoid sinus, and the
agger nasi cell (if one had been present) were all removed (figure, B).
The
agger nasi cells (Latin for 'nasal mound') are the most anterior ethmoid cells.
Messerklinger [1] (1978) found anatomical variations like nasal septum deviation, spur, concha bullosa,
Agger nasi cells, paradoxical middle turbinate, abnormal uncinate process and enlarged bulla are responsible for decreased sinus ventilation and pathogenesis of sinus disease.
Computed tomography (CT) of the sinuses showed bilateral mucosal thickening in the frontal sinuses and the presence of a well-defined left-sided
agger nasi cell (figure, A).
Patients who required other nasal procedures like septoplasty, conchoplasty, and clearance of
agger nasi cells were included in the study.
The mass was opened with a microdebrider (figure, B), and it was identified as a hyperpneumatized
agger nasi cell (figure, C).
During surgery, we were able to visualize the natural ostium of her left
agger nasi cell.
Pneumatization of
agger nasi was seen in 58 (72.5%) nasal cavities.