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Infantile spasms-broad thumbs syndrome

Disease definition

Infantile spasms-broad thumbs syndrome is a rare neurologic disorder characterized by profound developmental delay, facial dysmorphism (i.e. microcephaly, large anterior fontanel, hypertelorism, downslanting palpebral fissures, beaked nose, micrognathia), broad thumbs and flexion and/or extension spasms. Bilateral cataracts, hypertrophic cardiomyopathy and hydrocele have also been reported. EEG shows hypsarrhythmic features and MRI may reveal partial agenesis of the corpus callosum, mild brain atrophy and/or ventriculomegaly. There have been no further descriptions in the literature since 1990.


Classification level: Disorder
  • Synonym(s):
    • Tsao-Ellingson syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: -
  • Age of onset: Neonatal
  • ICD-10: G40.4
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: 3002
  • MedDRA: -
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