Eagle 综合征(Eagle's syndrome)是指由于茎突形态、长度、方位异常和（或）茎突舌骨韧带骨化而引起的一系列症状称为
临床表现：
1、Cranial nerve impingement 神经压迫症状
Patients can have symptoms related to compression and irritation of cranial nerves in the region (cranial nerves V, VII, IX and X) such as:
facial pain while turning the head转动头部时面部疼痛dysphagia吞咽困难foreign body sensation咽异物感pain on extending tongue伸舌痛change in voice声音改变sensation of hypersalivation唾液分泌增多tinnitus or otalgia耳鸣或耳痛On palpation of the styloid process tip, symptoms should ideally be exacerbated.茎突触诊时，症状会加重。
2、Arterial impingement 动脉压迫症状
Additionally compression of the carotid artery may also produce vascular / ischaemic symptoms as well as pain along the artery to the supplied territory (thought to be mediated by the sympathetic plexus) including:
mechanical compression机械压迫visual symptoms视觉症状syncope晕厥carotid dissection has also been described颈内动脉夹层sympathetic plexus irritation (carotidynia)交感神经刺激症状（颈动脉痛）eye pain眼痛parietal pain颅顶痛影像诊断：
关于茎突过长的诊断标准尚未有定论；对于茎突长度文献报道多在25 ～30mm之间；超过3cm可以诊断茎突过长，约4%的人群存在茎突过长，其中只有4%-15%的人群有症状。X线对茎突分节及茎突舌骨韧带钙化显示欠佳，CT重组图可以显示茎突形态与周围组织关系。
Eagle syndrome with ICA compression：
茎突过长致颈内动脉假性动脉瘤：
Bilateral cervical internal carotid artery dissections in Eagle syndrome：
双侧颈内动脉夹层
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