Kim Brian D, Oxley Thomas J, Fifi Johanna T, Shoirah Hazem
Neurology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.
Neurosurgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.
BMJ Case Rep. 2019 Aug 28;12(8):e230048. doi: 10.1136/bcr-2019-230048.
Ectopic branches of the external carotid artery are rare but have critical diagnostic and therapeutic implications. We present a case involving a 70-year-old man who presented with recurrent left hemispheric strokes in the setting of a subocclusive left internal carotid stenosis. A left ascending pharyngeal artery with variant origin from the internal carotid artery helped maintain flow distal to the area of stenosis and allowed for safe and successful internal carotid artery stenting. Identification of this variant and recognition of the anastomotic network involving this connection were crucial to determine the safety of stenting. The patient had no further recurrent events and had sustained improvement on his 90-day follow-up.
颈外动脉的异位分支罕见，但具有关键的诊断和治疗意义。我们报告一例70岁男性病例，该患者在左侧颈内动脉次全闭塞的情况下出现复发性左半球卒中。一支起源变异、发自颈内动脉的左侧咽升动脉有助于维持狭窄区域远端的血流，并使得颈内动脉支架置入术得以安全、成功地进行。识别这一变异以及认识涉及该连接的吻合网络对于确定支架置入的安全性至关重要。该患者未再发生复发性事件，在90天随访时病情持续改善。
