Figure 1. Example of a crossed cerebellar diaschisis and ipsilateral thalamic diaschisis-positive patient with Alzheimer’s disease. Arterial spin labeling perfusion magnetic resonance images showed reduced relative cerebral blood flow in the left cerebellum (A) and the right thalamus (B, arrow). On fluid-attenuated inversion recovery images, the cerebellum (C) and the thalami (D) were unremarkable.