ABSTRACT
Background: The anatomy of the nose and paranasal sinuses is complex, and many anatomical variations have been thoroughly studied. There is impact of these variations on the occurrence and severity of sinusitis. Computed Tomography (CT) scan is the modality of choice for evaluation of variable anatomical variations and different forms of sinusitis. Materials and methods: The aim of this research was to study the relation between recurrent sinusitis and anatomical variations of the osteomeatal complex and nasal structures by CT. A cross section prospective observation study was performed. We collected data of 120 patients subjected to CT of the paranasal sinuses. Result: Anatomical variations found by CT, nasal septal deviation represented the most common variation (75%), followed by concha bullosa and uncinate hypertrophy. Conclusion: There was a statistically significant correlation between nasal septal deviation, uncinate process anomalies and some patterns of sinusitis with the p value = <0.05.Computed tomography of the paranasal sinus has improved the visualization of paranasal sinus anatomy and variations and has allowed greater accuracy in evaluating paranasal sinus disease.