Razak Anmar, Short Jody L, Hussain Syed I
Division of Cerebrovascular disease, Department of Neurology and Ophthalmology, Michigan State University, East Lansing, MI.
J Neuroimaging. 2014 May-Jun;24(3):298-301. doi: 10.1111/j.1552-6569.2012.00759.x. Epub 2012 Nov 19.
Elongated styloid process (ESP) is an anatomical variant that has been described as the cause of Eagle syndrome. Until recently, the styloid process has not been appreciated as a significant contributor to carotid artery dissection (CAD), which is not part of Eagle syndrome. We present a case of a 41-year-old male who presented with acute right middle cerebral artery occlusion and was found to have ESP projecting to and abutting the lateral wall of a dissected right internal carotid artery (ICA). Forced sustained head turning with maximal muscle contraction was the initiating event driving the styloid process into the wall of the ICA in a manner that can be likened to being stabbed with a pointed object. Knowing the association between ESP, Eagle syndrome, and CAD shall lead to increased awareness and appropriate diagnosis and treatment.
茎突过长（ESP）是一种解剖学变异，已被描述为鹰综合征的病因。直到最近，茎突才被认为是颈动脉夹层（CAD）的一个重要促成因素，而CAD并非鹰综合征的一部分。我们报告一例41岁男性病例，该患者出现急性右侧大脑中动脉闭塞，发现其ESP突出并邻接右侧颈内动脉（ICA）夹层的侧壁。在最大肌肉收缩状态下进行强迫性持续转头是促使茎突以类似被尖锐物体刺伤的方式刺入ICA壁的起始事件。了解ESP、鹰综合征和CAD之间的关联将提高认识并促进恰当的诊断和治疗。
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