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.
Pre- and posttreatment head CTs with contrast in a patient with primary refractory PCNSL. (Left) The contrast-enhancing lesion before treatment with nivolumab. (Middle) Complete response following 2 months therapy with nivolumab. (Right) Continued complete response 13 months following initiation of therapy.
