title: Persistent primitive hypoglossal artery aneurysms--report of two cases.
abstract: The authors present two patients with subarachnoid hemorrhage caused by ruptured intracranial saccular aneurysms of the persistent primitive hypoglossal artery. A standard unilateral suboccipital approach in one patient resulted in incomplete neck clipping since the operative field was restricted by a protruding jugular tubercle. Successful aneurysmal neck clipping was achieved in the second patient via a unilateral-transcondylar-suboccipital approach with resection of the jugular tubercle and rim of the foramen magnum.
authors.affiliation: Department of Neurosurgery, Yamamoto Daisan Hospital, Osaka.
authors.forename: S
authors.initials: S
authors.lastname: Yamamoto
authors.forename: I
authors.initials: I
authors.lastname: Sunada
authors.forename: Y
authors.initials: Y
authors.lastname: Matsuoka
authors.forename: A
authors.initials: A
authors.lastname: Hakuba
authors.forename: S
authors.initials: S
authors.lastname: Nishimura
mesh_terms: D000328:Adult; D001158:Arteries / Q000002:abnormalities* / Q000196:embryology; D001488:Basilar Artery / Q000196:embryology; D002343:Carotid Artery, Internal / Q000196:embryology; D005260:Female; D006801:Humans; D015994:Incidence; D002532:Intracranial Aneurysm / Q000150:complications* / Q000453:epidemiology / Q000601:surgery; D012422:Rupture, Spontaneous; D013345:Subarachnoid Hemorrhage / Q000209:etiology*