Indian Journal of Radiology and Imaging Indian Journal of Radiology and Imaging

NEURORADIOLOGY & HEAD AND NECK IMAGING
Year
: 2018  |  Volume : 28  |  Issue : 3  |  Page : 273--279

Assessment of variations in sphenoid sinus pneumatization in Indian population: A multidetector computed tomography study


Shivaprakash B Hiremath, Amol A Gautam, Keerthy Sheeja, Geena Benjamin 
 Department of Radiodiagnosis, Pushpagiri Institute of Medical Sciences and Research Centre, Thiruvalla, Kerala, India

Correspondence Address:
Dr. Amol A Gautam
Department of Radiodiagnosis, Pushpagiri Institute of Medical Sciences and Research Centre, Thiruvalla, Kerala - 689101
India

Background and Purpose: The purpose of our study was to assess the prevalence of variations in the extent of sphenoid pneumatization in the Indian population and compare with existing literature. Materials and Methods: This retrospective study included 500 patients who underwent CT of the paranasal sinuses. The multiplanar reformations of paranasal sinus were assessed for the type of pneumatization of the sphenoid sinus and type of clival, lateral recess, lesser wing, and anterior recess extensions. Results: The conchal, presellar, incomplete sellar, and complete sellar types comprised 0%, 1.2%, 22.2%, and 76.6% of patients. The extensions of pneumatization subtypes in the study population were clival in 76.6% subjects; lateral recess, lesser wing, and anterior recess in 59.7%, 20.4%, and 20.4% of sinuses, respectively. The pure forms were seen in 25.4% and combined forms in 61% of sinuses. The presellar type (1.2%) was less common and sellar type (98.8%) being common in our population compared to the Caucasian and East Asian population. The sphenoid sinuses were extensively pneumatized in our population compared to the Chinese and Caucasian population, the prevalence being 76.6%, 68%, and 44.5% for clival; 59.7%, 46%, and 28.3% for lateral recess; 20.4%, 32%, and 12% for lesser wing extension, respectively. The pure forms were relatively less common and combined forms being more common compared to the Chinese and Caucasian population in our study. Conclusion: The extent of pneumatization of the sphenoid sinus has clinical and surgical implications in sellar and central skull base lesions, and variability in different populations confirms that ethnicity influences the differences in prevalence.


How to cite this article:
Hiremath SB, Gautam AA, Sheeja K, Benjamin G. Assessment of variations in sphenoid sinus pneumatization in Indian population: A multidetector computed tomography study.Indian J Radiol Imaging 2018;28:273-279


How to cite this URL:
Hiremath SB, Gautam AA, Sheeja K, Benjamin G. Assessment of variations in sphenoid sinus pneumatization in Indian population: A multidetector computed tomography study. Indian J Radiol Imaging [serial online] 2018 [cited 2018 Dec 9 ];28:273-279
Available from: http://www.ijri.org/article.asp?issn=0971-3026;year=2018;volume=28;issue=3;spage=273;epage=279;aulast=Hiremath;type=0