Very late-onset friedreich ataxia with laryngeal dystonia

Silvia Rota, Eleonora Marchina, Alice Todeschini, Lorenzo Nanetti, Fabrizio Rinaldi, Alessandra Vanotti, Caterina Mariotti, Alessandro Padovani, Massimiliano Filosto

Research output: Contribution to journalArticle

Abstract

Friedreich ataxia (FRDA) is an autosomal recessive neurodegenerative disorder characterized by progressive gait and limb ataxia, cerebellar, pyramidal and dorsal column involvement, visual defects, scoliosis, pes cavus and cardiomyopathy. It is caused by a homozygous guanine-adenine-adenine (GAA) trinucleotide repeat expansion in intron 1 of the frataxin gene (FXN) on chromosome 9q13-q21.1. Onset is usually in the first or second decade of life; however, late-onset cases of Freidreich ataxia (LOFA), after the age of 25 years, and very late-onset cases of Freidreich ataxia (VLOFA), after the age of 40 years, have been reported. VLOFA is quite rare and usually presents a milder progression of the disease. We report the case of a 64-year-old woman affected with VLOFA whose first symptoms (balance and gait disturbances) occurred at the age of 44 years. At the age of 62 years, she started complaining of a slowly progressive dysphonia showing the clinical aspects of laryngeal dystonia. Molecular analysis showed a 210- and 230-trinucleotide GAA repeat expansion in the two alleles of the FXN gene. Laryngeal dystonia has been reported only in very few cases of ataxia syndrome and never before in FRDA patients. It may represent a rare clinical manifestation of VLOFA thus confirming the high variability of the clinical spectrum of FRDA.

Original languageEnglish
Pages (from-to)287-290
Number of pages4
JournalCase Reports in Neurology
Volume6
Issue number3
DOIs
Publication statusPublished - Feb 6 2014

Keywords

  • Autosomal recessive neurodegenerative disorder
  • Friedreich ataxia
  • Laryngeal dystonia

ASJC Scopus subject areas

  • Clinical Neurology

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  • Cite this

    Rota, S., Marchina, E., Todeschini, A., Nanetti, L., Rinaldi, F., Vanotti, A., Mariotti, C., Padovani, A., & Filosto, M. (2014). Very late-onset friedreich ataxia with laryngeal dystonia. Case Reports in Neurology, 6(3), 287-290. https://doi.org/10.1159/000370062