"Paramagnetic rim lesions are seen on susceptibility-weighted MRI sequences (e.g. SWI, SWAN, T2*), and co-localises (co-registers) with high T2/FLAIR signal lesions 1-4. These lesions were originally described on 7 T MRI, however, can be readily and accurately appreciated on more conventional and available 1.5 T and 3 T strength MRI as well 1,2,5,8."
"lesions in anatomical regions with susceptibility artifacts, e.g. much of the anterior temporal lobes, orbitofrontal cortices, and infratentorial brain"
"the rim colocalises with the edge of all or part of a lesion core that is hyperintense on T2-weighted images; in case of large T2-lesions, detection of the paramagnetic rim lesion core can be facilitated by also looking at a more discernible hypointense core on T1-weighted images"