Related Experiment Video
Updated: Jul 14, 2025
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Anatomical variations of the frontal sinus: A computed tomography-based study
Asma Sulaiman Al Hatmi1,2, Eiman Al Ajmi2, Halima Albalushi3
1Department of Radiology, Ibri Hospital, Ibri, 512, Oman.
Frontal sinus morphology varies, with medium-sized variants most common. Understanding these anatomical variations, especially aplasia, is crucial for diagnosing sinusitis and preventing surgical complications.
Area of Science:
- Radiology
- Anatomy
- Otolaryngology
Background:
- Frontal sinus pneumatization exhibits significant individual variability.
- Anatomical variants include aplasia, hypoplasia, medium-sized, and hyperplasia.
- Understanding frontal sinus morphology is essential for clinical diagnosis and surgical planning.
Purpose of the Study:
- To investigate the prevalence and distribution of frontal sinus morphological variants in an Omani population.
- To analyze potential sex-based differences in frontal sinus anatomy.
Main Methods:
- Retrospective review of 1220 frontal sinus computed tomography (CT) scans from 610 Omani patients.
- Classification of frontal sinus morphology based on established criteria.
- Statistical analysis using the Chi-square test to assess sex influence.
Main Results:
- Medium-sized frontal sinuses were the most prevalent variant in both unilateral (13.3%) and bilateral (53%) occurrences.
- Aplasia and hypoplasia were less common but significant findings.
- Significant sex-related differences were observed in unilateral and bilateral hypoplasia and hyperplasia.
Conclusions:
- This study provides baseline data on frontal sinus morphology frequencies in Oman.
- Accurate identification of frontal sinus variants, particularly aplasia, is vital for preoperative assessment in endoscopic sinus surgery.
- Knowledge of these variations aids in the diagnostic evaluation of sinusitis.
More Related Videos
07:43Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
10:23Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
Related Concept Videos
01:27Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
01:10Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
01:27Imaging Studies III: Computed Tomography
01:14Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...