| ORIGINAL ARTICLE |
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| Year : 2019 | Volume
: 21
| Issue : 1 | Page : 1-5 |
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Anatomical variations in Computerized Tomography of paranasal sinuses in a Saudi population
Yasser Albalwi, Ahmad Alroqi, Sami Alharethy
Department of otolaryngology, King Abdulaziz University Hospital, King Saud University, Riyadh, Saudi Arabia
Correspondence Address:
MBBS Yasser Albalwi
Otolaryngology, Head and Neck Surgery Department, King Abdulaziz University Hospital, King Saud University, P.O. Box 245, Riyadh 11411
Saudi Arabia
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/1319-8491.277840
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Background: The variations in structures of the nasal cavity are essential to identify while practicing endoscopic sinus surgery (ESS). Inadequate knowledge of surgeons performing ESS, regarding the commonly occurring anatomical variations can lead to a variety of complications having substantial mortality and morbidity.
Objective: This study aims to evaluate the prevalence of clinically significant anatomical variations of the paranasal sinuses in a Saudi population. Methods: A retrospective analysis of 106 computed tomography (CT) examinations of adult Saudi population were conducted to determine the prevalence of clinically significant anatomical variations of the paranasal sinuses. The study was conducted from January 2012 to October 2013 at King Abdulaziz University Hospital.
Results: The findings showed concha bullosa in 41.5% of cases, Paradoxical middle turbinate in 5.7% of cases, Haller type of cell was seen in 11.3%, Onodi type of cell in 13.2%, pneumatization of uncinate process in 3.8 % of CT scans analyzed. Internal carotid artery (ICA) bulge in the sphenoid sinus was seen in 2.8% cases, whereas no ICA dehiscence was seen in any study. Optic nerve bulge in the sphenoid sinus was observed in 9.4% of the cases.
Conclusion: Knowledge regarding the existence of anatomical variations of the sinuses has a clinical significance beyond any doubt as it minimizes the probability of surgical complications especially in ESS.
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