label: Bifid distal phalanx of the thumb
label_lc: bifid distal phalanx of the thumb
description: "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) to a partially fused appearance of the two bones."