Dolichomegavertebrobasilar anomaly: diagnosis by CT.
D000792:Angiography; D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D014057:Tomography, X-Ray Computed; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging*