Fig 2. Representative photographs of hematoxylin-eosin-stained cross-sections for carotid arteries from each group.

A, Group I (Ib; 6 months). Eccentric advanced atherosclerotic plaque located proximal to the surgical stenosis. Arrow indicates calcium deposits at the bottom of the plaque. Note that the entire plaque is covered by a fibromuscular cap, suggesting the similarity to human lesions.

B, Group II (IIb; 6 months). Concentric intimal thickening. Note that in contrast with A, no advanced features of atherosclerosis are seen.

C, Group III (6 months). No atherosclerotic change is observed. Scale bar, 500 µm.