title: A New Anatomic Variation: Coexistence of Both Dandy-Walker Variant and Ophthalmic Artery Originating From Contralateral Internal Carotid Artery.
abstract: The authors report on 1 patient of variant origin of right ophthalmic artery (OA) from ophthalmic segment of the left internal carotid artery. A 41-year-old man was performed magnetic resonance (MR) imaging and MR angiography. Cerebral MR imaging revealed a Dandy-Walker variant. In MR angiography the authors observed this unusual variant of origin of OA and a complete occlusion of right internal carotid artery. To the authors' knowledge, this is the first patient who has coincidence of both Dandy-Walker variant and origin of OA from contralateral internal carotid artery. Careful observation of MR angiography images with maximum intensity projection is very important for detecting rare vascular variations.
authors.affiliation: *Department of Radiology, Medical Faculty, Ataturk University, Erzurum †Radiology Clinic, Afsin Public Hospital, Kahramanmaras, Turkey.
authors.forename: Hayri
authors.initials: H
authors.lastname: Ogul
authors.forename: Nuri
authors.initials: N
authors.lastname: Havan
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Gedikli
authors.forename: Berhan
authors.initials: B
authors.lastname: Pirimoglu
authors.forename: Mecit
authors.initials: M
authors.lastname: Kantarci
mesh_terms: D000328:Adult; D063405:Anatomic Variation; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D016893:Carotid Stenosis / Q000000981:diagnostic imaging; D015897:Comorbidity; D003616:Dandy-Walker Syndrome / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D009880:Ophthalmic Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*