Figure 1.
An example of the two different morphological appearances of VMs in MRI. (A) A discrete and well-demarcated VM in the thigh muscles. (B) A diffuse VM of the right forearm.
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.