School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Clin Anat. 2012 Apr;25(3):324-9. doi: 10.1002/ca.21242. Epub 2011 Aug 18.
While studying the detailed anatomy of the cranial sella turcica, an additional fossa in its floor, which has not previously been described, was noted. A survey for this fossa, therefore, was conducted on 205 adult crania from the Raymond A. Dart Collection of Human Skeletons, University of the Witwatersrand. To confirm the survey observations, the sella turcica region of 10 adult cadavers was also dissected. A larger anterior depression and a smaller posterior concave fossa, often extending on to the anterior surface of the dorsum sellae, were evident in the hypophysial region and occurred in 21.5% of crania and in six of the 10 dissected specimens. An anterior depression alone or a posterior fossa alone occurred in 2.4% and in 72% of the crania, respectively, indicating that the posterior fossa occurs most commonly in this series. The more commonly occurring presence of a posterior fossa abutting on to the anterior surface of the dorsum sellae is described for the first time.
在研究颅腔蝶鞍的详细解剖结构时，我们注意到其底部有一个以前未曾描述过的附加凹陷。因此，我们对威特沃特斯兰德大学雷蒙德·A·达特人类骨骼收藏的 205 具成人颅骨进行了此项研究。为了确认调查结果，我们还对 10 具成人尸体的鞍区进行了解剖。在垂体区域，我们发现一个较大的前凹陷和一个较小的后凹窝，后者通常延伸到鞍背的前表面，这种情况在 21.5%的颅骨中存在，在 10 个解剖标本中存在 6 个。单纯的前凹陷或单纯的后窝分别出现在 2.4%和 72%的颅骨中，这表明在后窝最常见的情况下，后窝发生的概率最高。我们首次描述了这种常见的后窝紧靠鞍背前表面的情况。
