title: Agenesis of internal carotid artery associated with congenital anterior hypopituitarism.
abstract: We report a rare case of unilateral agenesis of the internal carotid artery in association with congenital anterior hypopituitarism. The collateral circulation is supplied by a transsellar intercavernous anastomotic vessel connecting the internal carotid arteries. These abnormalities are well depicted on MRI and MRA. The agenesis of the internal carotid artery may explain the pathogenesis of some of congenital anterior hypopituitarism.
authors.affiliation: Department of Diagnostic Radiology, Samsung Medical Center, Seoul, Korea. rhiemoon@hananet.net
authors.forename: W J
authors.initials: WJ
authors.lastname: Moon
authors.forename: L
authors.initials: L
authors.lastname: Porto
authors.forename: H
authors.initials: H
authors.lastname: Lanfermann
authors.forename: R
authors.initials: R
authors.lastname: Weis
authors.forename: F E
authors.initials: FE
authors.lastname: Zanella
mesh_terms: D002343:Carotid Artery, Internal / Q000002:abnormalities*; D002675:Child, Preschool; D003456:Cryptorchidism / Q000150:complications* / Q000473:pathology; D006801:Humans; D007018:Hypopituitarism / Q000150:complications* / Q000151:congenital* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed