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Dominantly inherited spinocerebellar ataxias (SCAs) are a group of the heterogenous neurodegenerative diseases that are characterized by chronic progressive cerebellar ataxia associated with various combinations of other neurological signs. Clinical classification is difficult because of the phenotypic overlap. With the evolution of molecular genetics, the loci and mutations for many of the ataxias have been identified, allowing more definitive molecular classification.
We experienced 42 years-old man who presented with progressive both lower leg weakness, dysarthria, ataxia, ophthalmoplegia, and nystagmus. The family history was remarkably suspicious. We could not observe the upper extremity weakness, definite evidences of peripheral neuropathy and myopathy in electrodiagnosis. No abnormal findings in blood chemistry and brain MRI. We performed polymerase chain reaction (PCR) and polyacrylamide gel electrophoresis (PAGE) analysis, found that his gene contained expanded CAG repeats (CAG repeat number was 72). Although no effective treatment exists for most the ataxic syndromes, the accurate diagnosis and the genetic counseling are often important to the patient's family for prognostication.
In 1965 Gillespie reported a new syndrome of bilateral aniridia, cerebellar ataxia, and oligophrenia (mental retardation). This new syndrome was named Gillespie syndrome. Since then only 17 cases of Gillespie syndrome have been reported in UK, Brazil, Ireland, Belgium, Australia, and US. A case of Gillespie syndrome was not reported in Korea.
A 4 year-old girl has triad of Gillespie syndrome, which are partial aniridia, cerebellar ataxia and mental retardation. We confirmed this with ophthalmologic examination, brain MRI, and developmental delay. We report the typical manifestation of Gillespie syndrome in a 4 year-old girl with the brief review of literature.
Early onset cerebellar ataxia with retained tendon reflexes is distinctive clinical syndrome characterized by progressive cerebellar ataxia of unknown etiology with an onset within the first two decades. This disorder was distinguished from Friedreich's ataxia by the preservation of the deep tendon reflexes. There is 22-year-old male with 13 year history of slowly progressive cerebellar ataxia and dysarthria. His elder brother, also, has milder clinical manifestations, electrophysiological and radiological abnormalities. We experienced two cases of early onset cerebellar ataxia with retained tendon reflexes developed in brothers which was diagnosed by clinical manifestations, electrophysiologic, radiologic studies and report with brief review of related literatures.
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