title: Duplicate origin and extremely long P1 segment of the posterior cerebral artery diagnosed by MR angiography.
abstract: We present what we believe is the first report of a patient with an anomalous artery arising from the distal basilar artery and fusing with the mid-portion of an extremely long P1 segment of the left posterior cerebral artery that was diagnosed on magnetic resonance (MR) angiography. Careful review of MR angiographic images is important to detect rare arterial variations, and partial maximum-intensity-projection images aid their identification on MR angiography.
authors: Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan.
authors: Megumi
authors: M
authors: Matsuda
authors: Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan. auchino@saitama-med.ac.jp.
authors: Akira
authors: A
authors: Uchino
authors: Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan.
authors: Naoko
authors: N
authors: Saito
authors: Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Japan.
authors: Hiroaki
authors: H
authors: Neki
authors: Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Japan.
authors: Shinya
authors: S
authors: Kohyama
authors: Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Japan.
authors: Fumitaka
authors: F
authors: Yamane
mesh_terms: D000328:Adult; D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy; D018810:Magnetic Resonance Angiography; D020769:Posterior Cerebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*
keywords: Cerebral arterial variation; Duplicate origin; Magnetic resonance angiography; P1 segment; Posterior cerebral artery