Table 1.

Comparisons of clinical findings among SCA17 cases with 41 CAG/CCG repeats

Age at onset	Signs and symptoms at onset	Psychiatric symptoms	MRI	PET	Agea	Neurological examination	Reference
54	Personality changes increased frequency of falls	Depressive status, personality changes	Advanced cerebellar atrophy	Severely decreased glucose metabolism of both cerebellar hemispheres and putamen	63	Gait ataxia, dysdiadochokinesia and dysmetria, dysphagia, dysarthria and abnormal saccadic pursuit, severe axial asynergy during postural changes, choreiform dyskinesias	Present study
50	Gait difficulties increased frequency of falls	No	Cerebellar atrophy	na	75	Dysarthric speech, limb ataxia, gait ataxia, and brisk reflexes	Nanda et al., [9]
60	Involuntary movements of the limbs	Depressive status	na	na	63	Generalized choreic movements	Alibardi et al, [11]
59	Dysarthria and gait ataxia	No	Cerebellar atrophy	na	na	Pure cerebellar syndrome	Doherty et al., [12]
61	Hand tremor and progressive gait disturbance	No	No cerebellar atrophy	Markedly decreased DAT density in the bilateral putamen with anteroposterior gradient	64	Flexed posture and a short-step gait with a decreased bilateral arm swing resting-type hand tremor and bradykinesia. Choreic mixed with stereotypic and dystonic movements in perioral area and both hands	Park et al., [13]

^aAt neurological examination; na: not available