Fig 6.

A 44-year-old woman with glioblastoma; postcontrast T1WI (591/17 ms) (A), T2WI (2800/93 ms) (B), perfusion image by ASL (C), and CD-34–immunostained histopathologic specimen with the dark gray color overlaid on vessel lumen areas (×20) (D). A, Postcontrast T1WI reveals a ringlike enhancing mass (arrow) in the left cerebral hemisphere. B, T2WI shows the high-intensity mass (arrow) with peritumoral edema. C, On the perfusion image by ASL, the tumor was depicted as a high-intensity area (%Signal intensity = 265%) with a central low perfusion area (arrow). Image analysis of the CD-34–immunostained histopathologic specimen shows scattered vascular proliferation (%Vessel = 2.97%).