The image on the left shows an MRI-example of lesion type IV-V in the left internal carotid artery. The lipid-rich necrotic core shows low- to iso-signal intensity. Original magnification × 25. The image on the right shows the corresponding histological example (lesion type V) in the left internal carotid artery. Hematoxylin-Eosin (HE) Staining. Original magnification × 10.