label: Duplication of the distal phalanx of the thumb
label_lc: duplication of the distal phalanx of the thumb
description: "Complete or partial duplication of the distal phalanx of the thumb. Depending on the severity, the appearance on x-ray can vary from a notched phalanx (the duplicated bone is almost completely fused with the phalanx), a partially fused appearance of the two bones, or two separate bones appearing side to side."