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Evaluation of Anatomical Variations of the Nasal Cavity and Ethmoidal Complex on Cone-Bone Computed Tomography
Manishkumar Dinkar Shete1, Vela D Desai2, Leena Rahul Salunkhe3
1Department of Oral Medicine and Radiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India.
Background:
Anatomical variations of the nasal cavity and ethmoidal complex, though often asymptomatic, may influence nasal airflow, sinus drainage, and the development of sinonasal disorders. Accurate imaging is crucial for diagnosis and surgical planning. This study aimed to assess the prevalence and types of anatomical changes in the nasal cavity and ethmoidal complex using cone-beam computed tomography (CBCT).
Materials And Methods:
A cross-sectional observational study was undertaken with 300 adult patients' CBCT scans. Variations examined included septal deviation, concha bullosa, enlarged Nasi cells, Haller cells, Onodi cells, and anomalies of the uncinate process and turbinates.
Results:
Nasal septal variations were found in 56% of patients, with single deviations (18.3%) and deviation with spurring (11.0%) being the most common. Concha bullosa was most common in the middle turbinate (88.7% right, 91.3% left), with the lamellar subtype predominate. In 94.0% of instances, inferior turbinate hypertrophy was seen, with Onodi cells accounting for 32.0% of ethmoidal air cells. Other variations were Haller cells (17.7%) and Aggre Nasi cells (10.3%).
Conclusion:
It was concluded that anatomical differences in the nasal cavity and ethmoidal complex are widespread and have therapeutic implications. In otolaryngology and maxillofacial practice, CBCT is an invaluable imaging tool for detailed assessment, improving diagnostic accuracy, and assisting with surgical planning.
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