title: Proatlantal intersegmental artery and trigeminal artery associated with an aneurysm. Case report.
abstract: A case of coexisting proatlantal intersegmental artery and primitive trigeminal artery is described. These anomalies were incidental findings in a patient with hemiparesis due to occlusion of the middle cerebral artery. The primitive trigeminal artery had an asymptomatic aneurysm at its origin from the internal carotid artery.
mesh_terms: D000368:Aged; D001158:Arteries / Q000002:abnormalities* / Q000196:embryology; D001933:Brain Stem / Q000098:blood supply*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000000981:diagnostic imaging