Fig. 3.

Some white matter MS lesions contain predominately stellate-shaped NG2 cells. The lighter area inA demarcates a white matter MS lesion as identified by myelin staining in an adjacent section. Stellate-shaped NG2 cells (arrowheads) are present within the lesion. Blood vessels (arrows) are labeled also. In three separate MS lesions that contained predominately stellate-shaped NG2 cells, NG2 cell density within the lesion has been reduced significantly (p < 0.0001) when compared with NG2 cell density outside the lesion (B). MS case 2. Scale bar in A, 400 μm.