title: Huntington's disease presenting as amyotrophic lateral sclerosis.
abstract: We present the clinical, electrophysiological and molecular genetic findings of a 58-year-old male with genetically confirmed Huntington's disease (HD) and concurrent clinically definite ALS by El Escorial criteria. The patient presented with asymmetric upper limb amyotrophy and weakness, and subsequently developed chorea and cognitive change. Genetic testing confirmed the presence of expanded trinucleotide repeats in huntingtin, consistent with a diagnosis of Huntington's disease. This case confirms the rare coexistence of Huntington's disease and motor neuron degeneration.
authors.affiliation: Department of Neurology, Beaumont Hospital, Dublin, Ireland. juliephukan@yahoo.co.uk
authors.forename: Julie
authors.initials: J
authors.lastname: Phukan
authors.forename: Elfatih
authors.initials: E
authors.lastname: Ali
authors.forename: Niall P
authors.initials: NP
authors.lastname: Pender
authors.forename: Fiona
authors.initials: F
authors.lastname: Molloy
authors.forename: Michael
authors.initials: M
authors.lastname: Hennessy
authors.forename: Ronan J
authors.initials: RJ
authors.lastname: Walsh
authors.forename: Orla
authors.initials: O
authors.lastname: Hardiman
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000235:genetics / Q000503:physiopathology*; D006801:Humans; D006816:Huntington Disease / Q000175:diagnosis* / Q000235:genetics; D008297:Male; D008875:Middle Aged