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20p13 microdeletion syndrome

Disease definition

20p13 microdeletion syndrome is a rare chromosomal anomaly characterized by developmental delay, mild to moderate intellectual disability, epilepsy, and unspecific dysmorphic signs. High palate, delayed permanent tooth eruption, hypoplastic fingernails, clinodactyly and short fingers have also been reported.


Classification level: Disorder
  • Synonym(s):
    • 20p subtelomeric deletion syndrome
    • Del(20)(p13)
    • Monosomy 20p13
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal dominant or Not applicable 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q93.5
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -
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