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KMID : 0361020220650060328
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Korean Journal of Otolaryngology - Head and Neck Surgery
2022 Volume.65 No. 6 p.328 ~ p.333
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The Prevalence of Onodi Cells and Analysis of Relationship With Optic Nerve in Koreans
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Kown Jung-Hun
Han Seung-Yoon
Koo Hyung-Bon
Kang Myeong-Sin
Lee Jin
Lee Jae-Hoon
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Abstract
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Background and Objectives : It is important to identify variations of paranasal sinuses dur- ing sinus surgery. The Onodi cell (OC), a variant of the paranasal sinuses, is the most posteri- or ethmoid cell with a close relationship with the optic nerve (ON). The purpose of this study is to evaluate the prevalence of OCs and analyze the relationship of OCs with ON in Koreans.
Subjects and Method : This retrospective study utilized CT images of 526 slides from 263 Korean adults. The prevalence of the OCs and the degree of indentation of the ON within the OC was determined using binary logistic regression analysis.
Results : The OCs were observed in 37.3% of 263 subjects and in 27.6% of 526 slides. The OCs are found more frequently in males than in females (p=0.01), and also more frequently inthe right side than in the left side (p=0.001). Binary logistic regression analysis revealed thatthe ON protrusion in female was 0.339 times lower than in male and 1.052 times higher withthe increased age. The ON protrusion within the OC in the postsellar type was 10.214 times higher than that in the presellar.
Conclusion : The OCs were observed in 37.3% of the Koreans. The protrusion of the ON within the OCs increased in male and in the postsellar type of the sphenoid sinus.
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KEYWORD
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Korean, Onodi cell, Optic nerve, Prevalence, Sphenoid sinus
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