title: Persistent primitive olfactory artery aneurysm.
abstract: A hypertensive 69-year-old man presented with an incidentally discovered non-ruptured aneurysm of the persistent primitive olfactory artery (POA). The POA originates at the terminal portion of the internal carotid artery, runs along the olfactory tract anteriorly toward the crista galli, and forms an acute angle with the distal anterior cerebral artery. The aneurysm was located at this characteristic acute angle. The persistent POA aneurysm associated with an anterior communicating artery aneurysm with wide neck was successfully treated by clipping surgery.
authors.affiliation: Department of Neurosurgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Kensuke
authors.initials: K
authors.lastname: Suzuki
authors.forename: Tomosato
authors.initials: T
authors.lastname: Yamazaki
authors.forename: Wataro
authors.initials: W
authors.lastname: Tsuruta
authors.forename: Takao
authors.initials: T
authors.lastname: Tsurubuchi
authors.forename: Akira
authors.initials: A
authors.lastname: Matsumura
mesh_terms: D000368:Aged; D020771:Anterior Cerebral Artery / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D020785:Central Nervous System Vascular Malformations / Q000473:pathology / Q000601:surgery*; D002533:Cerebral Angiography; D002560:Cerebrovascular Circulation; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000601:surgery*; D008297:Male; D035583:Rare Diseases / Q000601:surgery; D016896:Treatment Outcome