DOI: https://doi.org/10.36347/sjams.2025.v13i06.013

Pages: 1319-1320

Conventional radiography has been largely replaced by high-resolution CT scan of the paranasal sinuses (PNS) for evaluating congenital anatomical variations and sinus pathologies (1-3). In this retrospective study, we evaluated 1,450 CT scans of the paranasal sinuses to determine the prevalence of various anatomical variations. Patients aged 15 to 85 years were included, while those with bone destruction or distortion due to surgery, trauma, or other pathologies were excluded. The most common variation observed was a deviated nasal septum (DNS) in 603 cases (41.6%), followed by Agger nasi cells in 548 cases (37.8%), concha bullosa in 302 cases (20.8%), bony nasal spur in 181 cases (12.5%), hypoplastic frontal sinus in 116 cases (8.0%), Haller cells in 44 cases (3.0%), Onodi cells in 29 cases (2.0%), pneumatization of the vomer bone in 15 cases (1.0%), and septate maxillary sinus in 12 cases (0.8%).