Brachydactyly type A1

What is Brachydactyly type A1?

Brachydactyly type A1 (BDA1) is a congenital malformation characterized by apparent shortness (or absence) of the middle phalanges of all digits, and occasional fusion with the terminal phalanges.

Other condition names

  • Brachydactyly, Farabee type

Inheritance type

Autosomal dominant


  • Worldwide: Unknown

Age of Onset

  • Infancy
  • Neonatal
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