title: Horner's syndrome in subadventitial carotid artery dissection and the role of magnetic resonance angiography.
abstract: OBJECTIVE
  A 47-year-old man with a postganglionic Horner's syndrome and severe right facial pain was found to have a normal carotid angiogram. We obtained a magnetic resonance angiogram of the neck because of our continued clinical suspicion of dissection.
  
  
  CONCLUSIONS
  An area of hyperintensity was identified along the lumen of the right internal carotid artery, suggesting a subadventitial dissection. Magnetic resonance angiography is a noninvasive, sensitive technique for identifying some carotid dissections.
authors.affiliation: Department of Ophthalmology, University of Iowa Hospitals and Clinics, Iowa City 52240, USA.
authors.forename: J
authors.initials: J
authors.lastname: Brown
authors.forename: R
authors.initials: R
authors.lastname: Danielson
authors.forename: S P
authors.initials: SP
authors.lastname: Donahue
authors.forename: H S
authors.initials: HS
authors.lastname: Thompson
mesh_terms: D000784:Aortic Dissection / Q000150:complications / Q000175:diagnosis*; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000473:pathology*; D005157:Facial Pain / Q000175:diagnosis / Q000209:etiology; D006732:Horner Syndrome / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011859:Radiography