Increasing evidence suggests the involvement of the cerebellum in non-motor
functions. We describe a patient who presented speech deficits after a rig
ht cerebellar infarction without other cognitive impairments. Tc-99m-HMPAO
single-photon emission computed tomography showed a marked hypoperfusion in
the right cerebellar hemisphere, but did not show crossed cerebellar-cereb
ral diaschisis. The absence of neuroradiological evidence of structural sup
ratentorial lesions supports the cerebellar role in modulating not only the
motor system, but also higher order functions. Eur J Neurol 6:353-356 (C)
1999 Lippincott Williams & Wilkins.