title: Bilateral congenital absence of the internal carotid artery.
abstract: Bilateral congenital absence of the internal carotid artery was incidentally found in an 11-year-old boy. Magnetic resonance imaging showed a normal-appearing brain that was entirely supplied by the vertebrobasilar system, and CT confirmed the absence of the bony carotid canals. Although most reported patients with agenesis of both internal carotid arteries presented with cerebrovascular lesions, this case demonstrates that this rare malformation may be asymptomatic.
authors.affiliation: Department of Radiology, CB 7510, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7510, USA.
authors.forename: Zoran
authors.initials: Z
authors.lastname: Rumboldt
authors.forename: Mauricio
authors.initials: M
authors.lastname: Castillo
authors.forename: Sten
authors.initials: S
authors.lastname: Solander
mesh_terms: D001488:Basilar Artery / Q000473:pathology; D001921:Brain / Q000098:blood supply; D002343:Carotid Artery, Internal / Q000002:abnormalities*; D002648:Child; D002941:Circle of Willis / Q000473:pathology; D003287:Contrast Media; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography; D008297:Male; D020768:Middle Cerebral Artery / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000473:pathology
chemical_list: D003287:Contrast Media