A Family with Friedreich Ataxia and Onion-Bulb Formations at Sural Nerve Biopsy

A A Barreira¹, W Marques¹, M G Sweeney¹+4

• ¹Department of Neurology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, BrazilDepartment of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, BrazilDepartment of Morphology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, BrazilNeurogenetics, Department of Clinical Neurology, Institute of Neurology, London, United Kingdom.