Tc-99m HMPAO Brain Perfusion SPECT Findings in Acute Cerebellitis

Acute cerebellitis is an uncommon neurological complication that may occur following childhood viral infections, and is rarely reported in adults. Imaging studies show no abnormalities in the majority of cases. We experienced three cases of acute cerebellitis, which showed no abnormal findings on MRI, but revealed diffusely increased cerebellar per-fusions on brain perfusion SPECT, which normalized 5~6 months later. Therefore, brain perfusion SPECT is consid-ered to be useful in identifying acute cerebellitis and in monitoring its clinical course.