TY - JOUR T1 - Frequency of the frontal sinus aplasia among Saudi Arabian population. <em>A single-center retrospective case review</em> JF - Saudi Medical Journal JO - Saudi Med J SP - 228 LP - 231 DO - 10.15537/smj.2021.2.25617 VL - 42 IS - 2 AU - Kholood S. Assiri AU - Ahmad S. Alroqi Y1 - 2021/02/01 UR - http://smj.org.sa/content/42/2/228.abstract N2 - Objectives: To assess the frequency of frontal sinus aplasia using computed tomography (CT) of the paranasal sinus among Saudi Arabian population.Methods: A retrospective case review of medical records from January 2019 to December 2019 in the Otorhinolaryngology Department, King Abdulaziz University, Riyadh, Saudi Arabia.Results: A total of 449 cases were reviewed. The incidence of bilateral frontal sinus aplasia was 3.3%. The incidence of right sinus agenesis was 5.12% and left was 1.33%. The mean age of reviewed patients was 39.15 years.Conclusion: The frequency of frontal sinus aplasia is low; however, this must be considered before surgical operations related to the sinuses. ER -