Kim H S, Kim D I, Chung I H
Department of Diagnostic Radiology, Severance Hospital, Seoul, Korea.
Neuroradiology. 1996 May;38 Suppl 1:S120-6. doi: 10.1007/BF02278138.
The pterygopalatine fossa is an important space because it communicates with the middle cranial fossa, orbit, nasal cavity, oral cavity, pharynx, foramen lacerum, and the infratemporal fossa via eight foramina and canals. We studied the pterygopalatine fossa, foramen rotundum, inferior orbital fissure, sphenopalatine foramen, pterygoid canal, greater and lesser palatine foramen, palatinovaginal canal, and the pterygomaxillary fissure with high-resolution CT to characterise the anatomy and variants of these structures. These structures were evaluated using axial and coronal planes. In the morphometric study, the distance between the foramina rotunda did not show statistically significant differences between the anterior and posterior segments. The pterygoid canal was slightly narrower in the anterior segment (23.9 mm) than in the posterior segment (25.2 mm). The pterygoid canal narrowed in the anterior (1.8 mm) to posterior (1.2 mm) direction (P < 0.01). The distance between the pterygoid canal and the lower wall of the sphenoid sinus was 2.2 mm anteriorly and 2.8 mm posteriorly (P < 0.01). The pterygoid canal showed various relationships with the sphenoid and ethmoid sinuses. In addition, a previously unreported situation, where the foramen rotundum was surrounded by the spheroid sinus, was observed.
翼腭窝是一个重要的间隙，因为它通过八个孔和管道与中颅窝、眼眶、鼻腔、口腔、咽、破裂孔和颞下窝相通。我们使用高分辨率CT研究了翼腭窝、圆孔、眶下裂、蝶腭孔、翼管、腭大孔和腭小孔、腭鞘管以及翼上颌裂，以描述这些结构的解剖特征和变异情况。这些结构在轴向和冠状面上进行评估。在形态学研究中，圆孔之间的距离在前段和后段之间没有显示出统计学上的显著差异。翼管前段（23.9mm）比后段（25.2mm）略窄。翼管在从前（1.8mm）到后（1.2mm）的方向上变窄（P<0.01）。翼管与蝶窦下壁之间的距离在前为2.2mm，在后为2.8mm（P<0.01）。翼管与蝶窦和筛窦呈现出多种关系。此外，还观察到一种先前未报道的情况，即圆孔被蝶窦包围。
