Horner Syndrome as a Rare Presentation of Extracranial Internal Carotid Artery Stenosis: A Case Report

Acquired Horner syndrome comprises a constellation of clinical signs, including ipsilateral eyelid ptosis, miosis, and facial anhidrosis. The etiologies vary depending on age and location of the lesion. Pathologies involving the cervical part of the internal carotid artery (ICA) which have mainly been reported include dissection or tumor invasion. Herein, we report a rare association of Horner syndrome with ICA stenosis