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.
Examples of segmented de novo and repeat lesions. (A) shows large de novo (blue) lesions and (B), a lower slice from the same subject, shows de novo and repeat (red) lesions in close proximity (arrow). (C) shows periventricular repeat lesions with no de novo activity (arrow) and (D) shows a large repeat lesion.
