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CC BY 4.0 · Int Arch Otorhinolaryngol 2025; 29(03): s00451809647
DOI: 10.1055/s-0045-1809647
Original Research

Is Concha Bullosa Associated with Nasal Septum Deviation and Mucosal Thickening of the Maxillary Sinuses? A Cone Beam Computed Tomography Study

Autoren

  • Débora Costa Ruiz 

    1   Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil

  • Letícia de Andrade Souza 

    1   Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil

  • Amanda Farias-Gomes 

    1   Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil

  • Deborah Queiroz Freitas 

    1   Department of Oral Diagnosis, Piracicaba Dental School, Universidade de Campinas, Piracicaba, SP, Brazil

Funding This research was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) – Finance Code 001.
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Abstract

Introduction

Concha bullosa (CB) is an anatomical variation that can affect respiratory function. Therefore, identifying it is important.

Objective

To evaluate the prevalence of CB and its association with the side of pneumatization (right/left), nasal septum deviation (NSD), and mucosal thickening of the maxillary sinuses using cone-beam computed tomography (CBCT) exams from a Brazilian subpopulation. Also, to investigate the association between CB, sex and age.

Methods

There were 297 CBCT exams assessed by two examiners who evaluated the presence of CB (> 50% pneumatization of the turbinate's height), NSD (deviation point of the nasal septum and crista galli angle >9o), and mucosal thickening of maxillary sinuses (mucosa around the sinus walls > 3 mm in height). The association between CB and side, NSD, mucosal thickening of the maxillary sinuses, sex, and age were evaluated by the chi-squared and Fisher's exact tests (α = 5%).

Results

A total of 208 CB was found, corresponding to 11.7% of the evaluated turbinates, being more prevalent in the middle one (p < 0.0001). Considering all exams, 132 (44.4%) had at least one CB. There was an association between the presence of middle left CB with NSD (p = 0.028). No other significant associations were found (p > 0.05).

Conclusion

Almost half of the CBCT exams had at least one CB. Its prevalence was higher in the middle turbinate. There seems to be an association between middle CB and NSD. As for the other variables, no strong association was found.

Keywords

concha bullosa - nasal septum deviation - maxillary sinus - diagnostic imaging - cone-beam computed tomography


Publikationsverlauf

Eingereicht: 08. August 2024

Angenommen: 24. März 2025

Artikel online veröffentlicht:
10. September 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)

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Bibliographical Record
Débora Costa Ruiz, Letícia de Andrade Souza, Amanda Farias-Gomes, Deborah Queiroz Freitas. Is Concha Bullosa Associated with Nasal Septum Deviation and Mucosal Thickening of the Maxillary Sinuses? A Cone Beam Computed Tomography Study. Int Arch Otorhinolaryngol 2025; 29: s00451809647.
DOI: 10.1055/s-0045-1809647