title: Tortuous vertebrobasilar system: a cause of cranial nerve signs.
mesh_terms: D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002530:Cerebellopontine Angle / Q000098:blood supply*; D002533:Cerebral Angiography; D003391:Cranial Nerves; D005152:Facial Muscles; D005260:Female; D006801:Humans; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000209:etiology; D013035:Spasm / Q000209:etiology; D014711:Vertebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging