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A variant of mirror hand. A case report
The Journal of Bone and Joint Surgery. British Volume
|February 3, 2005
Summary
This study details a rare mirror hand anomaly in a 20-year-old male, characterized by limb duplication extending above the elbow. Unique features include delayed treatment initiation and complex skeletal abnormalities.
Area of Science:
- Orthopedics
- Medical Genetics
- Developmental Biology
Background:
- Mirror hand is a rare congenital anomaly characterized by the ulnar ray deficiency and mirror-image duplication of the hand.
- This condition typically involves abnormalities in the distal limb, but proximal extension is exceptionally uncommon.
Observation:
- A 20-year-old male presented with a rare variant of mirror hand, exhibiting polydactyly (multiple fingers).
- Radiographic imaging revealed significant skeletal anomalies, including two ulnae (one vestigial) and a single radius.
- Duplication of the humeral head was also noted, indicating proximal extension of the anomaly.
Findings:
- The patient's mirror hand variant presented with unique features, including duplication extending proximal to the elbow.
- Skeletal malformations included a duplicated humeral head and dual ulnae, with one ulna being vestigial.
- The patient's age at the initiation of treatment (20 years) is a notable aspect of this rare case.
Implications:
- This case highlights the importance of recognizing complex upper limb malformations, even in adulthood.
- The proximal extension of duplication challenges existing classifications and understanding of mirror hand development.
- Further research into the genetic and developmental pathways underlying such extensive duplications is warranted for potential therapeutic strategies.