Orphanet: Autosomal recessive cerebellar ataxia movement disorder syndrome

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Autosomal recessive cerebellar ataxia-movement disorder syndrome

Disease definition

A rare hereditary ataxia characterized by a progressive cerebellar ataxia associated with disruption of visual fixation by saccadic intrusions (overshooting horizontal saccades with macrosaccadic oscillations and increased velocity of larger saccades). It presents with progressive gait, trunk and limb ataxia with pyramidal tract signs (increased tendon reflexes and Babinski sign), myoclonic jerks, fasciculations, cerebellar dysarthria, sensorimotor axonal neuropathy with impaired joint position, vibration, temperature, pain sensations, pes cavus, and saccadic intrusions with characteristic overshooting horizontal saccades, macrosaccadic oscillations, and increased velocity of larger saccades, without other eye movement disturbances.

ORPHA:95434

Classification level: Disorder

Synonym(s):
- SCAR4
- SCASI
Prevalence: <1 / 1 000 000
Inheritance: Autosomal recessive
Age of onset: Adult
ICD-10: G11.1
OMIM: 607317
UMLS: C1846492
MeSH: -
GARD: 4952
MedDRA: -

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Autosomal recessive cerebellar ataxia-movement disorder syndrome

ORPHA:95434

A summary on this disease is available in Deutsch (2018) Español (2018) Français (2018) Italiano (2018) Nederlands (2018)

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