Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cerebral digital subtraction angiography displays the left vertebrobasilar artery without any abnormalities, but the V3 segment of the right VA shows dissection with distal occlusion (↑), and development of the posterior inferior cerebellar artery and basilar artery was absent.
