Hage D, Iwanaga J, Danaei A, Sadr A, Tubbs R S
Department of Neurosurgery, Tulane Centre for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, United States.
Department of Neurosurgery, Tulane University School of Medicine, New Orleans, LA, United States.
Folia Morphol (Warsz). 2023;82(1):183-186. doi: 10.5603/FM.a2022.0011. Epub 2022 Feb 3.
The anterior ethmoidal artery (AEA) is an important surgical landmark for procedures involving the anterior cranial fossa. Many variations in the location and branching pattern of the AEA have been reported throughout the literature. These anatomical variations are important for surgeons to be familiar with as injury to the AEA can lead to massive haemorrhage, orbital haematomas, and cerebrospinal fluid rhinorrhoea. Anatomical landmarks such as the ethmoidal foramen can be used to identify the location of the AEA; however, it is also important to consider that the foramen may have variable presentations. If there is ever difficulty with identification of the AEA, surgeons should pursue a high-resolution computed tomography to minimise the risk of surgical complications. In this report, we present a rare case of a variant accessory anterior ethmoidal artery and nerve, and variations in the ethmoidal foramen found during cadaveric dissection.
筛前动脉（AEA）是涉及前颅窝手术的重要手术标志。文献中已报道了AEA在位置和分支模式上的许多变异。这些解剖变异对外科医生来说很重要，因为损伤AEA可导致大量出血、眼眶血肿和脑脊液鼻漏。诸如筛孔等解剖标志可用于确定AEA的位置；然而，同样重要的是要考虑到筛孔可能有不同的表现。如果在识别AEA时有困难，外科医生应进行高分辨率计算机断层扫描，以尽量减少手术并发症的风险。在本报告中，我们展示了一例罕见的副筛前动脉和神经变异病例，以及在尸体解剖过程中发现的筛孔变异。
