Serindere Gozde, Gunduz Kaan, Avsever Hakan
Department of Dentomaxillofacial Radiology, Hatay Mustafa Kemal University, Faculty of Dentistry, Hatay, Turkey.
Department of Dentomaxillofacial Radiology, Ondokuz Mayıs University, Faculty of Dentistry, Samsun, Turkey.
J Neurol Surg B Skull Base. 2021 Feb 18;83(Suppl 2):e75-e82. doi: 10.1055/s-0040-1722712. eCollection 2022 Jun.
The aim of this study was to evaluate the clivus morphology, including fossa navicularis magna (FNM), canalis basilaris medianus (CBM), and craniopharyngeal canal (CC), on computed tomography (CT) images. This is a retrospective study. Faculty of Dentistry, Department of Dentomaxillofacial Radiology. The CT images of 500 patients (253 males; 247 females) were evaluated. The prevalence of FNM, CBM, and CPC; the length, width, and depth of FNM; and CBM types were recorded. Also, a morphological analysis of the clivus (length of the clivus, angle between the clivus and the posterior margin of the foramen magnum, angle between the clivus and the dens axis, and anteroposterior diameter of the foramen magnum) was performed. FNM was identified in 5.4%, CBM in 4%, and CC in 0.8% of the study group. Type 5 CBM was not found. Type 6 was the most common CBM type. There was no significant correlation between the age and gender of patients with FNM. There were significant differences between the clivus length, the angle between the clivus and the dens axis, the anteroposterior diameter of the foramen magnum, and gender. Also, there was a significant difference between the angle between the clivus and the foramen magnum and age. The anatomical variations of the clivus are rare and important for the oral and maxillofacial radiologist to make the differential diagnosis. These anatomical variations should not be confused with pathologic formations. The morphological measurements and anatomical variations of the clivus can be evaluated in detail on CT images.
本研究旨在通过计算机断层扫描（CT）图像评估斜坡形态，包括舟状大窝（FNM）、基底正中管（CBM）和颅咽管（CC）。 这是一项回顾性研究。 牙科学院口腔颌面放射科。 对500例患者（253例男性；247例女性）的CT图像进行了评估。 记录了FNM、CBM和CPC的患病率；FNM的长度、宽度和深度；以及CBM类型。此外，还对斜坡进行了形态学分析（斜坡长度、斜坡与枕骨大孔后缘之间的角度、斜坡与齿状突轴之间的角度以及枕骨大孔的前后径）。 在研究组中，FNM的识别率为5.4%，CBM为4%，CC为0.8%。未发现5型CBM。6型是最常见的CBM类型。FNM患者的年龄和性别之间无显著相关性。斜坡长度、斜坡与齿状突轴之间的角度、枕骨大孔的前后径与性别之间存在显著差异。此外，斜坡与枕骨大孔之间的角度与年龄之间存在显著差异。 斜坡的解剖变异很少见，对口腔颌面放射科医生进行鉴别诊断很重要。这些解剖变异不应与病理结构相混淆。斜坡的形态学测量和解剖变异可以在CT图像上进行详细评估。
