title: Non familial juvenile distal spinal muscular atrophy of upper extremity.
abstract: An uncommon variety of non familial, juvenile onset, spinal muscular atrophy with asymmetric distal upper extremity affection is described. One hundred and two patients with a one to 14 year follow up are analysed. Spinal muscular atrophies with a distal distribution are rare. However, in the past three decades, previously unrecognised varieties of neurogenic muscular atrophy have been described in Asia (Japan, India, Sri Lanka and Singapore) under a variety of names. These provide interesting data for discussion of Asian neurogenic muscular atrophies with distal affection, in the context of diseases of the motor neuron.
authors.affiliation: Institute of Neurology, General Hospital, Sri Lanka.
authors.forename: J B
authors.initials: JB
authors.lastname: Peiris
authors.forename: K N
authors.initials: KN
authors.lastname: Seneviratne
authors.forename: H R
authors.initials: HR
authors.lastname: Wickremasinghe
authors.forename: S B
authors.initials: SB
authors.lastname: Gunatilake
authors.forename: R
authors.initials: R
authors.lastname: Gamage
mesh_terms: D000293:Adolescent; D000328:Adult; D001132:Arm / Q000294:innervation*; D001706:Biopsy; D004576:Electromyography; D005260:Female; D005500:Follow-Up Studies; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D009046:Motor Neurons / Q000502:physiology / Q000648:ultrastructure; D009132:Muscles / Q000294:innervation; D009134:Muscular Atrophy, Spinal / Q000473:pathology / Q000503:physiopathology*