title: Brainstem infarction in a patient with internal carotid dissection and persistent trigeminal artery: a case report.
abstract: BACKGROUND
  The primitive trigeminal artery (PTA) is the most commonly described fetal anastomosis between the carotid and vertebrobasilar circulations.
  
  
  METHODS
  We report a 42-year-old patient presenting with internal carotid dissection, and imaging features of brainstem infarction.
  
  
  CONCLUSIONS
  Based on the imaging studies we presume occlusive carotid dissection with extensive thrombosis within a persistent trigeminal artery as the cause of this brainstem ischemia.
authors.affiliation: Department of Neuroradiology, CHU Nancy, Nancy 54035, France. dana.iancu00@gmail.com
authors.forename: Daniela
authors.initials: D
authors.lastname: Iancu
authors.forename: Rene
authors.initials: R
authors.lastname: Anxionnat
authors.forename: Serge
authors.initials: S
authors.lastname: Bracard
mesh_terms: D000328:Adult; D020526:Brain Stem Infarctions / Q000150:complications / Q000473:pathology*; D020215:Carotid Artery, Internal, Dissection / Q000150:complications / Q000473:pathology*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D014276:Trigeminal Nerve / Q000098:blood supply* / Q000473:pathology*