Abstract
Background. The frontal recess area represents a challenge to ENT surgeons due to its narrow confines and variable anatomy. Several types of cells have been described in this area. The agger nasi cells are the most constant ones. The frontal cells, originally classified by Kuhn into 4 types, have been reported in the literature to exist in 20%–41% of frontal recesses. Aim of the Study. To identify the prevalence of frontal recess cells and their relation to frontal sinus disease. Methods. Coronal and axial CT scans of paranasal sinuses of 70 patients admitted for functional endoscopic sinus surgery (FESS) were reviewed to identify the agger nasi, frontal cells, and frontal sinus disease. Data was collated for right and left sides separately. Results. Of the 140 sides reviewed, 126 (90%) had agger nasi and 110 (78.571%) had frontal cells. 37 frontal sinuses were free of mucosal disease, 48 were partly opacified, and 50 were totally opacified. There was no significant difference found in frontal sinus mucosal disease in presence or absence of frontal cells or agger nasi. Conclusions. The current study shows that frontal cells might be underreported in the literature, as the prevalence identified is noticeably higher than previous studies.
Highlights
Functional endoscopic sinus surgery (FESS) has become one of the commonest surgical procedures performed by otolaryngologists [1]
In accordance with DelGaudio et al [3], the current study showed no significant difference in frontal sinus mucosal disease in presence or absence of frontal cells or agger nasi cells
As the current study and previous studies have shown no relation between the presence of frontal cells and the development of frontal sinusitis, it is likely that the prevalence of frontal cells in patients with chronic rhinosinusitis is not significantly different from the prevalence in a normal population
Summary
The frontal recess area represents a challenge to ENT surgeons due to its narrow confines and variable anatomy. The frontal cells, originally classified by Kuhn into 4 types, have been reported in the literature to exist in 20%–41% of frontal recesses. To identify the prevalence of frontal recess cells and their relation to frontal sinus disease. Coronal and axial CT scans of paranasal sinuses of 70 patients admitted for functional endoscopic sinus surgery (FESS) were reviewed to identify the agger nasi, frontal cells, and frontal sinus disease. Of the 140 sides reviewed, 126 (90%) had agger nasi and 110 (78.571%) had frontal cells. There was no significant difference found in frontal sinus mucosal disease in presence or absence of frontal cells or agger nasi. The current study shows that frontal cells might be underreported in the literature, as the prevalence identified is noticeably higher than previous studies
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