Influence of opacification in the frontal recess on frontal sinusitis

J Laryngol Otol. 2017 Jul;131(7):620-626. doi: 10.1017/S002221511700086X. Epub 2017 Apr 20.


Objectives: This study aimed to radiologically evaluate the influence of inflammatory changes in frontal recess cells on frontal sinusitis.

Methods: A total of 93 patients (186 sides) who underwent primary sinonasal surgery at Hyogo College of Medicine were enrolled in 2015 and 2016. Opacification of agger nasi, fronto-ethmoidal, ethmoid bulla, suprabullar and frontal bulla cells was determined by pre-operative computed tomography and its influence on frontal sinusitis was investigated.

Results: In all, 42 per cent of 186 sides were affected by frontal sinusitis. Agger nasi, ethmoid bulla, fronto-ethmoidal, suprabullar and frontal bulla cells were identified in 99 per cent, 100 per cent, 38 per cent, 69 per cent, and 16 per cent of sides, respectively. The presence of frontal recess cells and frontal ostium size did not significantly influence frontal sinusitis development. However, opacification of agger nasi, type 1 fronto-ethmoidal and suprabullar cells significantly influenced frontal sinusitis development.

Conclusion: Frontal sinusitis is caused by inflammatory changes in frontal recess cells.

Keywords: Eosinophil; Frontal Sinus; Helical Computed Tomography; Paranasal Sinus Diseases.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Cell Count
  • Chronic Disease
  • Diagnosis, Differential
  • Eosinophilia / diagnostic imaging
  • Eosinophilia / surgery
  • Female
  • Frontal Sinus / diagnostic imaging*
  • Frontal Sinus / pathology
  • Frontal Sinusitis / diagnostic imaging*
  • Frontal Sinusitis / pathology
  • Frontal Sinusitis / surgery*
  • Humans
  • Male
  • Middle Aged
  • Tomography, X-Ray Computed*
  • Young Adult