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From the Departments of Neurological Sciences (Drs. Barbieri, Pellecchia, Di Stasio, Perretti, Santoro, and De Michele) and Molecular and Cellular Biology (I. Castaldo), "Federico II" University, Naples; "S. Maria della Pietà" Hospital (Dr. Esposito), Nola; and Molecular Medicine Unit (Dr. Santorelli), "Bambino Gesù" Childrens Hospital, Rome, Italy.
Address correspondence and reprint requests to Dr. G. De Michele, Dipartimento di Scienze Neurologiche-Università "Federico II," Via Pansini 5, 80131 Napoli, Italy; e-mail: demichel{at}unina.it
Two brothers presented with late-onset cerebellar ataxia and severe dysphonia. Brain MRI showed vermian and hemispheric cerebellar atrophy. Laringofiberscopy revealed laryngeal abductor paralysis in both patients. Neurophysiologic studies showed a pure motor neuropathy. The combined findings and the molecular analysis suggest a new familial disorder. Inheritance is most likely autosomal recessive, but X-linked transmission is also possible.
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