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Hyperphosphatasia-intellectual disability syndrome

Disease definition

A rare, congenital disorder of glycosylation-related bone disorder characterized by hypotonia, severe developmental delay, intellectual disability, seizures, increased serum alkaline phosphatase, short distal phalanges with hypoplastic nails, and dysmorphic facial features. In some cases, cleft palate, megacolon, anorectal malformations, and congenital heart defects have been reported.

ORPHA:247262

Classification level: Disorder
  • Synonym(s):
    • Mabry syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: -
  • OMIM: 239300  614207  614749  615716  616025  616809
  • UMLS: C1855923
  • MeSH: -
  • GARD: -
  • MedDRA: -
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