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Prevalence of concha bullosa in a pediatric population

Jessie G Jiang1, Sarah A Gitomer2, Suhong Tong3

  • 1University of Colorado School of Medicine, 13001 E 17th Pl, Aurora, CO, 80045, USA.

International Journal of Pediatric Otorhinolaryngology
|September 16, 2024
PubMed

Insights

Concha bullosa (CB), an air-filled middle turbinate, affects nearly 40% of children over 4 years old. This common finding is often linked with nasal septal deviation, particularly on the opposite side.

Area of Science:

  • Pediatric Radiology
  • Otolaryngology
  • Anatomy

Background:

  • Pneumatization of the middle turbinate, known as concha bullosa (CB), is an anatomical variation with limited prevalence data in pediatric populations.
  • CB is clinically significant as it can influence sinonasal anatomy and is frequently associated with congenital nasal septal deviation (SD).

Purpose of the Study:

  • To determine the prevalence of concha bullosa (CB) in a pediatric cohort using head imaging.
  • To describe the common types of CB and its association with nasal septal deviation (SD) in children.

Main Methods:

  • A retrospective review of 695 pediatric CT head scans for trauma (2021-2022) was conducted.
  • Exclusion criteria included facial fractures, sinusitis, syndromes, prior surgery, and sinonasal masses.
  • Two pediatric neuroradiologists assessed 384 eligible scans, defining CB as aeration >50% of the middle turbinate's vertical height.

Main Results:

  • The prevalence of CB was 39.8% in the studied pediatric population, significantly higher in children over 4 years old (p < 0.0001).
  • Lamellar type CB was the most frequent subtype, found in 20.8% of middle turbinates.
  • Nasal septal deviation (SD) was present in 39.2% of patients with CB, predominantly contralateral to the CB.

Conclusions:

  • The prevalence of CB in children falls within the lower range reported for adults.
  • Lamellar CB is the most common type observed in pediatric patients.
  • A significant association exists between CB and contralateral SD, with a positive correlation between the severity of CB and SD.
Abstract

Keywords:
Concha bullosaCongenitalImagingSeptal deviation

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