Hyperphalangy

Definition

Hyperphalangy is a congenital, non-syndromic limb malformation characterized by the presence of an accessory phalanx between metacarpal/metatarsal and proximal phalanx, or between any two other phalanges of a digit, excluding the thumb. Hypherphalangy is almost always bilateral and patients present no more than five digits and no other skeletal anomalies.

Also indexed as

Nearby in Structural developmental anomalies of the skeleton

• LB70Structural developmental anomalies of cranium
• LB71Structural developmental anomalies of facial bones
• LB72Structural developmental anomalies of shoulder girdle
• LB73Structural developmental anomalies of spine or bony thorax
• LB74Structural developmental anomalies of pelvic girdle
• LB75Brachydactyly
• LB76Triphalangeal thumb
• LB78Polydactyly