FIG 3. SPECT images obtained in patient 13 show cerebellar hypoperfusion (arrows) in both the acute (top row) and subacute (middle row) stages. This patient had SSS scores of 22 at admission and 55 at 60 days after onset. MR images (bottom row) obtained at 58 days show an infarct in the right basal ganglia and frontal lobe.