title: Persistent primitive olfactory artery connected with middle cerebral artery: case report.
abstract: A persistent primitive olfactory artery (PPOA) is an extremely rare variation of the proximal anterior cerebral artery (ACA). The PPOA is connected to the distal ACA, ethmoidal artery, or both. I describe one patient with a PPOA connected to the middle cerebral artery (MCA). I analyzed the radiological characteristics of this anomalous vessel in this patient, who presented with headache. Computed tomography-angiography revealed an abnormal vessel in the patient, which originated from the distal ACA and ran anteromedially along the olfactory tract; it then made an abrupt turn and became the MCA. A PPOA connected to the MCA has been described in only two patients, including my own, in the English-language literature.
authors.affiliation: Department of Neurosurgery, Seoul Paik Hospital, Inje University College of Medicine, 85 Jeo-dong 2-ga, Jung-gu, Seoul, 100-032, Korea, hanibalkms@hanmail.net.
authors.forename: Myoung Soo
authors.initials: MS
authors.lastname: Kim
mesh_terms: D000368:Aged; D000792:Angiography; D020771:Anterior Cerebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D020768:Middle Cerebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed