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.
Representative images for visual grading scales of FDG uptake by PCNSL. In a grade 1 tumor (A) the tumor uptake is greater than that of the contralateral white matter and less than that of the contralateral gray matter, (B) grade 2 is equal in uptake to the contralateral gray matter, and (C) grade 3 uptake is greater than that of the contralateral gray matter. FDG = Fludeoxyglucose, PCNSL = primary central nervous system lymphoma.
