title: Noninvasive imaging of carotid giant pseudoaneurysm.
abstract: METHODS
  A 54-year-old man presented an acute stroke in the right middle cerebral artery territory. The carotid duplex ultrasound revealed an aneurismatic mass in the right proximal internal carotid artery (ICA) with a lumen and an organized thrombus inside. The multislice angio-CT (MSACT) showed a giant saccular pseudoaneurysm involving the right ICA. Surgical resection of the aneurysm was performed, with proximal anastomosis between internal and external carotid artery. Pathological study revealed a pseudoaneurysm with a thrombosed wall.
  
  
  CONCLUSIONS
  Spontaneus ICA pseudoaneurysms are a rare cause of stroke that must be considered in the differential diagnosis of cervical masses. Duplex ultrasound and carotid MSACT are noninvasive methods that may provide an accurate diagnosis.
authors.affiliation: Department of Neurology, La Paz University Hospital, Autónoma de Madrid University, Madrid, Spain.
authors.forename: Patricia
authors.initials: P
authors.lastname: Martínez-Sánchez
authors.forename: Blanca
authors.initials: B
authors.lastname: Fuentes
authors.forename: Covadonga
authors.initials: C
authors.lastname: Mendieta
authors.forename: Andres
authors.initials: A
authors.lastname: Fernádez-Prieto
authors.forename: Pilar
authors.initials: P
authors.lastname: García-Raya
authors.forename: Irene
authors.initials: I
authors.lastname: Sanz-Gallego
authors.forename: Gerardo
authors.initials: G
authors.lastname: Ruiz-Ares
authors.forename: Exuperio
authors.initials: E
authors.lastname: Díez-Tejedor
mesh_terms: D017541:Aneurysm, False / Q000150:complications / Q000000981:diagnostic imaging*; D020212:Carotid Artery Injuries / Q000150:complications / Q000000981:diagnostic imaging*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D020521:Stroke / Q000000981:diagnostic imaging* / Q000209:etiology; D014463:Ultrasonography