title: Idiopathic bilateral carpal tunnel syndrome in a 9-month-old infant presenting as a pseudo-dystonia.
abstract: BACKGROUND
  Carpal tunnel syndrome is the most common focal peripheral neuropathy seen in most electrophysiological laboratories. Although the incidence of carpal tunnel syndrome in adults is 50 to 150 cases per 100,000 people, it is rare in children. There are less than 200 case reports of carpal tunnel syndrome in children, with mucopolysaccharides and mucolipidosis being the most frequent cause. Idiopathic carpal tunnel syndrome with childhood onset occurs in less than 0.2% of cases.
  
  
  METHODS
  We describe a 9-month-old infant who presented with intermittent abnormal posturing movement of both hands.
  
  
  RESULTS
  The clinical presentation and the electrophysiological studies confirmed the diagnosis of carpal tunnel syndrome. His dystonic posturing had disappeared completely 3 weeks after surgical release of both flexor retinaculi.
  
  
  CONCLUSIONS
  We are not only reporting the youngest child with carpal tunnel syndrome, but we also report a new cause of abnormal movement disorder in children.
authors.affiliation: College of Medicine, King Saud bin Abdualziz University for Health Sciences, Jeddah, Saudi Arabia. Electronic address: halgahtani@hotmail.com.
authors.forename: Hussein
authors.initials: H
authors.lastname: Algahtani
authors.affiliation: University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Bradley V
authors.initials: BV
authors.lastname: Watson
authors.affiliation: University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Jill
authors.initials: J
authors.lastname: Thomson
authors.affiliation: College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Mohammed W
authors.initials: MW
authors.lastname: Al-Rabia
mesh_terms: D002349:Carpal Tunnel Syndrome / Q000175:diagnosis* / Q000503:physiopathology*; D020821:Dystonic Disorders / Q000503:physiopathology*; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D007223:Infant; D008297:Male; D009431:Neural Conduction / Q000502:physiology
keywords: carpal tunnel syndrome; dystonic posturing of both hands; median neuropathy; pseudodystonia