Computed tomographic analysis of the prevalence of International Frontal Sinus Anatomy Classification cells and their association with frontal sinusitis

Abstract

Objectives To determine the radiological prevalence of frontal cells according to the International Frontal Sinus Anatomy Classification in patients undergoing computed tomography of the paranasal sinuses for clinical symptoms of chronic rhinosinusitis, and to examine the association between cell classification and frontal sinusitis development. Methods A total of 180 (left and right) sides of 90 patients were analysed. The prevalence of each International Frontal Sinus Anatomy Classification cell was assessed. Logistic regression analysis was used to compare the distribution of various cells in patients with and without frontal sinusitis. Results The agger nasi cell was the most commonly occurring cell, seen in 95.5 per cent of patients. The prevalence rates for supra agger cells, supra agger frontal cells, supra bullar frontal cells, supra bullar cells, supra-orbital ethmoid cells and frontal septal cells were 33.3 per cent, 22.2 per cent, 21.1 per cent, 36.1 per cent, 39.4 per cent and 21.1 per cent, respectively. There was no significant difference in the occurrence of any of the cell types in patients with frontal sinusitis compared to those without (p > 0.05). Conclusion The presence of any of the International Frontal Sinus Anatomy Classification cells was not significantly associated with frontal sinusitis.

Radiological anatomical variations of the lateral nasal wall and anterior skull base amongst different populations: A systematic review and meta‐analysis

“…A total of 56 studies with 11 805 persons were included. All studies 13–66 involved a single population except for two studies 5,67 which recruited two distinct populations in each study. The studies were from 27 countries which can be divided into seven regions specifically Africa, Asia, Australia‐New Zealand‐Oceania, North America, South America, Europe and Middle East.…”

Sinonasal Anatomical Variations in Chronic Rhinosinusitis

“…Seth et al [36] reported the prevalence of supra bulla frontal cells in study was 21.1%. This prevalence rate was higher than those in the North American and Vietnamese groups, which were 5.5% and 4.3% respectively [35,37].…”

Does Frontal Recess Cell Variation Associate with the Development of Frontal Sinusitis? A Narrative Review

“…Multiple studies investigated frontal cells’ prevalence based on IFAC within different populations [ 8 , 18 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ] ( Table 1 ). Similarly, other studies investigated their prevalence based on the Kuhn classification [ 28 , 29 , 30 , 31 , 32 , 33 ] ( Table 2 ).…”

“…In regard to the anatomical terminology, authors have used different names for naming the cells surrounding the frontal drainage pathway that include frontal cells [ 24 , 28 ], frontal sinus cells [ 27 ], and frontal recess cells [ 25 , 29 , 30 , 31 ]. To avoid confusion to the readers, in this review we describe these cells as frontal recess cells throughout the manuscript.…”