Figure 4.
(a) Early brain computed tomography angiography during the first admission. (b) Fountain sign, a vascular blush from the tip of the aneurysmal outpouching on delayed brain computed tomography angiography
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.