title: Horner syndrome as an isolated manifestation of an intrapetrous internal carotid artery dissection.
abstract: OBJECTIVE
  To describe the atypical localization and unusual clinical manifestation of an internal carotid artery dissection.
  
  
  METHODS
  We examined a 43-year-old woman who had sudden onset of left ptosis and miosis with vague dysesthesia around her eye.
  
  
  RESULTS
  Her examination showed an intrapetrous carotid artery dissection.
  
  
  CONCLUSIONS
  The intrapetrous segment is an extremely rare localization for an internal carotid artery dissection. The differential diagnosis of acute Horner syndrome should include carotid dissection, which is usually accompanied by other neurologic manifestations.
authors.affiliation: Ophthalmology Department, Hospital Ramón y Cajal, Madrid, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Bilbao
authors.forename: S
authors.initials: S
authors.lastname: Amoros
authors.forename: J
authors.initials: J
authors.lastname: Murube
mesh_terms: D000328:Adult; D000784:Aortic Dissection / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D000925:Anticoagulants / Q000627:therapeutic use; D001763:Blepharoptosis / Q000175:diagnosis / Q000209:etiology; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000473:pathology; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D005260:Female; D006493:Heparin / Q000627:therapeutic use; D006732:Horner Syndrome / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D006801:Humans; D010579:Petrous Bone; D014859:Warfarin / Q000627:therapeutic use
chemical_list: D000925:Anticoagulants; D014859:Warfarin; D006493:Heparin