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.
1a shows the hyperdensity of the left transverse sinus (yellow arrow) compared to the right transverse sinus (white arrow). 1b represents hyperdensity, with focal hypodensity in the distal left sigmoid sinus (red arrow). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
