Author:
Fearon Conor,Lonergan Roisin,Ferguson Damien,Byrne Susan,Bradley David,Langan Yvonne,Redmond Janice
Abstract
Friedreich’s ataxia is classically considered a disease with onset in the first or second decade. However, late-onset (age of onset 25–39 years) and very-late-onset (age of onset >40 years) forms do occur rarely. Misdiagnosis is common, particularly because the later onset forms of Friedreich’s ataxia commonly do not show characteristic features of the disorder (areflexia, dysarthria, sensory neuropathy, extensor plantars, amyotrophy, cardiac involvement, diabetes mellitus, scoliosis). Also, there may be atypical features such as spasticity, brisk reflexes and laryngeal dystonia. We present the clinical, imaging and genetic findings of a kindred with very-late-onset Friedreich’s ataxia and discuss the pitfalls and risk of misdiagnosis.
Subject
Neurology (clinical),General Medicine
Cited by
8 articles.
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