Diagnosis, most prominent clinical and MRI findings in cerebellar patients.

Definitive or suspected diagnosis, most prominent clinical and MRI findings in the 14 patients studied. Sporadic adult onset ataxia (SAOA); Autosomal-dominantly inherited cerebellar ataxia type III (ADCA III); Downbeat nystagmus (DBN); Gait ataxia (GA); Horizontal gaze evoked nystagmus (GEN); Limb ataxia (LA); Impaired horizontal smooth pursuit eye movements (SP); Vermis (V); Vestibulo-cerebellum (VestCb). Patient No 9 and No 10 are brothers. *: two patients only tested during earth-vertical yaw axis, because of reported motion sickness during earth-vertical pitch rotations.