Postaxial polydactyly type A
ORPHA:93334· ICD-10 Q69.0
Definition
A rare congenital limb malformation characterized by duplication of the fifth digit in a hand or foot, with an extra, well-formed, functional digit at the metacarpophalangeal/metatarsophalangeal or carpometacarpal/tarsometatarsal joint. The malformation can be an isolated finding or be associated with a large number of other anomalies.
- Prevalence
- 1-5 / 10 000
- Inheritance
- Autosomal recessive
- Age of onset
- Antenatal