has part has part characteristic of has modifier Short middle phalanx of the 5th finger Brachymesophalangia-V, a short and broad middle phalanx of the fifth digit, is the most common of all skeletal anomalies of the hand. When this feature appears alone, it is clinically known as brachydactyly type A3 (BDA3). Short middle phalanx of finger Aplasia/Hypoplasia of the middle phalanx of the 5th finger Short 5th finger Type A brachydactyly abnormal decreased length middle phalanx of manual digit 5