Anatomical Variations of Ostiomeatal Complex in CBCT of Patients Seeking Rhinoplasty

Statement of the problem: anatomic variation can potentially impact the surgical safety. purpose: the purpose of this cross-sectional study was to assess the prevalence of ostiomeatal complex variations based on cone beam computed tomography (cbct) images of the patients seeking rhinoplasty.materials and method: in this cross-sectional study, cbct images of 281 patients including 153 female and 128 male with mean±sd age of 26.97±7.38 were retrieved and analyzed for presence of variations of ostiomeatal complex and mucosal thickening. all cbct images were acquired by newtom vgi scanner with 15×15 field of view, as a part of preoperative recording of patients seeking rhinoplasty in an otolaryngology clinic. chi- square test and odds ratio were used for statistical analysis of the obtained data and p < 0.05 was considered to be statistically significant.results: agger nasi cells which were seen in 93.2% of the cases were the most com-mon anatomic variation. it was followed by haller cells (68%), concha bullosa (67.3%), uncinate process variations (54.8%), nasal sepal deviation (49.5%) and paradoxical curvature of middle turbinate (10%). mucosal thickening were detected in 60.7% of the studied cases.conclusion: ostiomeatal complex variations and mucosal thickening are considerably prevalent among the patients seeking rhinoplasty. this study also revealed that cbct evaluation of paranasal sinuses has comparable result in delin-eation of the sinonasal anatomy.