5xFAD mice show CAA on leptomeningeal and penetrating vessels.
Parenchymal microvascular damage paralleled plaque formation in fronto-parietal cortices, later affecting the hippocampus.
Inflammatory IBA1/GFAP reactivity topographically overlapped with microdomains of vascular damage and parenchymal plaques.
Microvascular inflammatory changes in 5xFAD mice were multicellular, accompanied by PDGFRβ+ pericytes loss and rearrangement overtime.