Fig 6.

Pseudoresponse in a 36-year-old woman with a partially resected GBM in the right temporal lobe and insula. Axial contrast-enhanced T1- weighted (A) and FLAIR (B) images obtained in the immediate postoperative period show an extensive hyperintense FLAIR lesion (arrows) with multiple foci of contrast enhancement (arrowheads). C, An anti-VEGF agent was administered, and a follow-up axial contrast-enhanced T1-weighted image depicts a striking decrease of the enhancing component (arrowhead). D, However, there is also an increase of the nonenhancing infiltrative component, manifested as FLAIR hyperintensity in the right frontotemporal region and insula, with an expansive effect, blurring, and loss of the cortical-subcortical differentiation (arrows).