{Reference Type}: Journal Article {Title}: Frequency of the frontal sinus aplasia among Saudi Arabian population. A single-center retrospective case review. {Author}: Assiri KS;Alroqi AS; {Journal}: Saudi Med J {Volume}: 42 {Issue}: 2 {Year}: Feb 2021 {Factor}: 1.422 {DOI}: 10.15537/smj.2021.2.25617 {Abstract}: OBJECTIVE: 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.
CONCLUSIONS: The frequency of frontal sinus aplasia is low; however, this must be considered before surgical operations related to the sinuses.