Figure 4. Prominent perivascular spaces. A 75-year-old woman with cognitive decline. Axial T1-weighted (A), T2-weighted (B) and FLAIR (C) images demonstrate multiple prominent perivascular spaces in bilateral basal ganglia regions, smaller than lacunes (see Figure 2), but also with signal intensity similar to CSF in all sequences. There is no T2/FLAIR hyperintense rim. Note the concomitance of white matter hyperintensities of presumed vascular origin on T2-weighted (B) and FLAIR (C) images.
