From HPO
Triphalangeal thumb- MedGen UID:
- 66029
- •Concept ID:
- C0241397
- •
- Congenital Abnormality
A thumb with three phalanges in a single, proximo-distal axis. Thus, this term applies if the thumb has an accessory phalanx, leading to a digit like appearance of the thumb.
Complete duplication of distal phalanx of the thumb- MedGen UID:
- 867069
- •Concept ID:
- C4021427
- •
- Anatomical Abnormality
Complete duplication of the distal phalanx of the thumb. On x-ray two separate bones appear side to side.