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Polysyndactyly

Disease definition

Polysyndactyly or PPD4 is a form of preaxial polydactyly of fingers (see this term), a limb malformation syndrome, characterized by the presence of a thumb showing the mildest degree of duplication, being broad, bifid or with radially deviated distal phalanx. Syndactyly of various degrees of third-and-fourth fingers is occasionally present.

ORPHA:93338

Classification level: Disorder
  • Synonym(s):
    • PPD4
    • Preaxial polydactyly type 4
  • Prevalence: -
  • Inheritance: Autosomal dominant 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q70.4
  • OMIM: 174700
  • UMLS: C0265553  C1868111
  • MeSH: -
  • GARD: 9903
  • MedDRA: 10063143
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