Sphenoid sinus anatomic variations in computed tomography

Abstract

Aim: The aim of this study is to identify antomical variations of the sphenoid sinuses in computed tomography images of non-sinusitis patients. Obtained data has been compared to some similar studies and in order to make contributions to the literature. Material and Methods: Computed tomography images of the sphenoid sinuses of 120 patients (55 males, 65 females) were retrospectively evaluated with multiplanar reformatted tecnique. Anatomical variations of the sphenoid sinuses were identify according to their origins. Results: We observed protrusion of the internal carotid artery (45,8%) and it the most common anatomic variation. It was followed by onodi cells (34,16%). Persantage of the internal carotid artery dehiscence was %2,50. So dehiscence of internal carotid artery were identified the least variations. Conclusion: Consequently, protrusion of internal carotid artery and onodi cell are common in Turkish population. Therefore, it should be very careful in patients undergoing especially sphenoid sinus operation.

Keywords

• Paranasal Sinuses, Anatomy, Computer Tomography

Bilgisayarlı tomografide sfenoid sinüs anatomik varyasyonları

Abstract

Amaç: Bu çalışmanın amacı sinüziti olmayan hastalarda bilgisayarlı tomografi ile sfenoid sinüs anatomik varyasyonlarının belirlenmesidir. Elde edinilen bilgiler benzer çalışmalarla karşılaştırılarak literatüre katkı amaçlanmıştır. Materyal ve Metod: Çalışmada retrospektif 120 hastanın (55 erkek, 65 kadın) paranazal sinüs bilgisayarlı tomografi görüntüleri multiplanar reformat yöntemi ile incelendi. Sfenoid sinüs varyasyonları kaynaklandığı yapıya göre değerlendirildi. Bulgular: Karotid kanal protrüzyonu %45,8 ile en fazla gözlemlenen anatomik varyasyon oldu. Onu %34,16 ile onodi hücreleri takip etti. Karotid kanal dehissansı %2,50 olarak gözlemlendi ve de en az gözlemlenen varyasyon oldu. Sonuç: Sonuçlar değerlendirildiğinde internal karotid kanal protrüzyonu ve onodi hücresi Türk toplumunda sık rastlanılan varyasyonlardır. Bu yüzden operasyon ile sfenoid sinüse müdahale edilecek hastalarda özellikle dikkat edilmelidir.

Keywords

• Paranazal Sinüsler, Anatomi, Bilgisayarlı Tomografi

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