Development of the maxillary sinus in infants and children

Bharat Bhushan1, Karen Rychlik2, James W Schroeder1

  • 1Department of Surgery, Division of Otolaryngology Head & Neck Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, USA; Department of Otolaryngology Head & Neck Surgery, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.

Insights

The maxillary sinus grows in height throughout childhood until age 18. Its width and depth increase significantly until age 12, with computed tomography (CT) scans showing these changes in children.

Area of Science:

  • Pediatric radiology
  • Craniofacial development
  • Anatomy

Background:

  • The maxillary sinus is a key anatomical feature in the craniofacial complex.
  • Understanding its growth patterns is crucial for diagnosing developmental abnormalities and planning interventions.

Purpose of the Study:

  • To investigate age-related changes in maxillary sinus dimensions (height, width, depth, and volume) in children.
  • To establish normative growth data for the pediatric maxillary sinus using computed tomography (CT).

Main Methods:

  • Retrospective analysis of CT scans from 139 children (<18 years) without sinus pathology.
  • Measurements of maxillary sinus height, width, and depth were taken.
  • Patients were categorized into three age groups: <6, 6-12, and >12 years.

Main Results:

  • Maxillary sinus height increased significantly across all age groups (p<0.001).
  • Significant increases in width and depth were observed in children younger than 12 years (p<0.001).
  • Maxillary sinus width, depth, and volume showed no significant increase after age 12.

Conclusions:

  • Maxillary sinus dimensions exhibit distinct growth phases during childhood.
  • Height demonstrates continuous growth up to 18 years, while width and depth growth plateaus around age 12.
Abstract

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