Petrous apex pneumatisation in children: a radiological study

Area of Science:

• Pediatric Radiology
• Otolaryngology
• Anatomy

Background:

• Petrous apex pneumatisation is relevant for diagnosing and managing middle-ear disease.
• Understanding its prevalence and characteristics in children is crucial.

Purpose of the Study:

• To investigate petrous apex pneumatisation in a pediatric population.
• To correlate pneumatisation with age, sex, and ethnicity.
• To identify communicating tracts between the middle ear and petrous apex.

Main Methods:

• Analysis of computed tomography (CT) head scans from 1700 patients aged 0-16 years.
• Calculation of petrous apex bone and air cell volumes to assess pneumatisation degree.
• Evaluation of scans for communicating tracts between the middle ear and petrous apex.

Main Results:

• Petrous apex pneumatisation was observed in 21.0% of pediatric patients.
• A strong positive correlation was found between age and both the prevalence and degree of petrous apex pneumatisation.
• No significant differences in prevalence were noted based on sex or ethnicity.
• Communicating tracts were present in 84.3% of patients with pneumatisation, often anterior to the otic capsule.

Conclusions:

• The prevalence and degree of petrous apex pneumatisation in children significantly increase with age.
• Sex and ethnicity do not appear to influence the prevalence of petrous apex pneumatisation in this age group.
• Findings provide valuable insights for clinical diagnosis and surgical interventions related to pediatric middle-ear conditions.