Frontal Sinus Morphology in the Malaysian Population:
Patterns of Pneumatization and Gender Differences (Pilot Study)
Keywords:
Forensic science, Frontal sinuses, multidetector computed tomography (MDCT), human identificationAbstract
Introduction: The study of various bones has been utilized across different populations for purposes such as gender, racial, and individual identification. This research focuses on examining the pneumatization and dimensions of the frontal sinus (FS) within the Malaysian population. Material and Methods: The study analyzed 60 multidetector computed tomography (MDCT) scans of bilateral frontal sinuses from Malaysian subjects aged over 25 years, all without any pathological conditions or prior surgeries involving the FS. Findings revealed that 26.66% of the sample exhibited variations in FS development. For individuals with pneumatization on both sides, the average frontal depth (FD) measured 10.54 ± 3.39 mm. In cases where the right frontal sinus was not pneumatized, the FD averaged 8.32 ± 2.23 mm, and the left width (LW) was 30.78 ± 6.50 mm. Among those with bilateral pneumatization, significant gender differences were observed in FD (P = 0.042), right width (RW) (P = 0.033), and LW (P = 0.033). However, no significant racial differences were found in FD (P = 0.819), RW (P = 0.718), or LW (P = 0.270). The study concludes that about one-quarter of Malaysians show variations in frontal sinus development, more frequently on the right side. Despite notable gender-related differences in FS measurements, racial variations were not significant. The authors recommend further research with a larger and ethnically balanced sample to validate these findings.
References
Algahefi, A. L., Alhammadi, M. S., Zheng, B., et al. (2022). Morphological and dimensional variations of the frontal air sinuses in a group of adolescent Caucasians and Chinese in different skeletal malocclusions: A cross-sectional cephalometric study. Clinical Oral Investigations, 26(10), 5711–5719. https://doi.org/10.1007/s00784-022-04527-5
Al Hatmi, A. S., Al Ajmi, E., Albalushi, H., Al Lawati, M., & Sirasanagandla, S. R. (2023). Anatomical variations of the frontal sinus: A computed tomography-based study. F1000Research, 12, 71. https://doi.org/10.12688/f1000research.129498.2
Aydinhoglu, A., Kavakh, A., & Erdem, S. (2003). Absence of frontal sinus in Turkish individuals. Yonsei Medical Journal, 44(2), 215–218.
Belaldavar, C., Kotrashetti, V. S., Hallikerimath, S. R., & Kale, A. D. (2014). Assessment of frontal sinus dimensions to determine sexual dimorphism among Indian adults. Journal of Forensic Dental Sciences, 6(1), 25–30.
Čechová, M., Dupej, J., Brůžek, J., Bejdová, Š., Horák, M., & Velemínská, J. (2019). Sex estimation using external morphology of the frontal bone and frontal sinuses in a contemporary Czech population. International Journal of Legal Medicine, 133(4), 1285–1294.
Çakur, B., Sumbullu, M. A., & Durna, N. B. (2011). Aplasia and agenesis of the frontal sinus in Turkish individuals: A retrospective study using dental volumetric tomography. International Journal of Medical Sciences, 8(3), 278–282.
Clemente, M. P. (2005). Surgical anatomy of the paranasal sinus. In Sinus surgery: Endoscopic and microscopic approaches (pp. 1–56). Thieme.
Department of Statistics, Malaysia. (2024, November 13). Demographic statistics, third quarter 2024. Retrieved from [https://www.dosm.gov.my/portal-main/release-content/demographic-statistics-third-quarter-2024]
Gadekar, N. B., Kotrashetti, V. S., Hosmani, J., & Nayak, R. (2019). Forensic application of frontal sinus measurement among the Indian population. Journal of Oral and Maxillofacial Pathology, 23(1), 147–151. https://doi.org/10.4103/jomfp.JOMFP_214_18
Gupta, R., & Lee, J. C. (2017). Sinonasal Imaging. In A. E. Mancuso, T. D. Soloniuk, & D. H. Chong (Eds.), Radiology secrets plus (4th ed., pp. 101–109). Elsevier.
Harris, A. M., Wood, R. E., Nortjé, C. J., & Thomas, C. J. (1987). Gender and ethnic differences of the radiographic image of the frontal region. Journal of Forensic Odonto-Stomatology, 5(2), 51–57.
Jose Marcos, P., Ralmundo Nonato, A., Jose Maldonado, V., Patick, M., & Ana Clara, T. (2008). Anatomical variations of the frontal sinus. International Journal of Morphology, 26(4), 803–808.
Nikam, S. S., Gadgil, R. M., Bhoosreddy, A. R., Shah, K. R., & Shirsekar, V. U. (2015). Personal identification in forensic science using uniqueness of radiographic image of frontal sinus. Journal of Forensic Odonto-Stomatology, 33(1), 1–7.
Ozgursoy, O. B., Comert, A., Yorulmaz, I., Tekdemir, I., Elhan, A., & Kucuk, B. (2010). Hidden unilateral agenesis of the frontal sinus: Human cadaver study of a potential surgical pitfall. American Journal of Otolaryngology, 31(4), 231–234.
Sahlstrand-Johnson, P., Jannert, M., Strömbeck, A., & Abul-Kasim, K. (2011). Computed tomography measurements of different dimensions of maxillary and frontal sinuses. BMC Medical Imaging, 11(1), 1–7.
Silva, R. F., Pinto, R. N., Ferreira, G. M., & Daruge Júnior, E. (2008). Importance of frontal sinus radiographs for human identification. Revista Brasileira de Otorrinolaringologia, 74(5), 798.
Soman, B. A., Sujatha, G. P., & Lingappa, A. (2016). Morphometric evaluation of the frontal sinus in relation to age and gender in subjects residing in Davangere, Karnataka. Journal of Forensic Dental Sciences, 8(1), 57. https://doi.org/10.4103/0975-1475.176945
Tatlisumak, E., Yilmaz, O. G., Asirdizer, M., Aslan, A., Ozyurt, B., Bayindir, P., et al. (2008). CT study on maophometry of frontal sinus. Clinical Anatomy, 21(3), 287–293.
Williams, P. L., Warwick, R., Dyson, M., & Bannister, L. H. (1989). Gray’s anatomy (37th ed.). Churchill Livingston.
Yazici, D. (2019). The effect of frontal sinus pneumatization on anatomic variants of paranasal sinuses. European Archives of Oto-Rhino-Laryngology, 276(4), 1049–1056. https://doi.org/10.1007/s00405-018-5259-y
Zulkiflee, N. D., Singh, M. K., Alias, A., Pritam, H. M., Chung, E., Sakaran, R., Zaidun, N. H., & Woon, C. K. (2022). Distribution of frontal sinus pattern amongst Malaysian population: A skull radiograph study. Anatomy & Cell Biology, 55(3), 294–303.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 SOHAYLA ATTALLA, Hassan Ads, KhairuNisa KhairulZaman, Pushpagandy A/P Ramanathan, Haitham Abdalrazak, Nihal Hanafy, Hesham Kassim, Jalal Ibrahim, Kavitha Kumar

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
CC Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0): This license allows for non-commercial use, sharing, and distribution of the work, but prohibits modification, adaptation, and derivative works.