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.
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).
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
Computed tomography (CT) of the sinuses showed opacification of both maxillary sinuses, a large and well-developed right agger nasi
cell, and a vertical insertion of the right middle turbinate (figure, A).