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.
A: Preoperative T1-weighted MR image showing an enhancing Grade III glioma. B: An H & E–stained specimen showing a very hypercellular lesion. C: Immunostained specimen showing diffuse GFAP (green) staining with loss of the tight organization of GFAP filaments around the red CD31-positive vessels. D: Specimen stained for AQ4 (red) also showing diffuse staining with no strong border formed around the CD31-positive vessels (green).
