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Term:
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Absent epiphysis of the 1st metacarpal 
Bracket epiphysis of the 1st metacarpal 
An epiphysis that curves around from its transverse orientation to a longitudinal one from proximal to distal along one side of the phalanx, thus resembling the letter 'C' and forming a bracket around the diaphysis. This results in a so called delta phalanx characterized by a triangular or trapezoidal shaped bone with a C-shaped epiphyseal plate.
Bracket epiphysis of the proximal phalanx of the 2nd finger 
Bracket epiphysis of the proximal phalanx of the 3rd finger 
Bracket epiphysis of the proximal phalanx of the 4th finger 
Bracket epiphysis of the proximal phalanx of the 5th finger 
Cone-shaped epiphysis of the 1st metacarpal  
Enlarged epiphysis of the 1st metacarpal 
Epiphyseal stippling of the first metacarpal 
Fragmentation of the epiphysis of the 1st metacarpal +  
Irregular epiphysis of the 1st metacarpal 
Ivory epiphysis of the 1st metacarpal 
Pseudoepiphysis of the 1st metacarpal  
Small epiphysis of the 1st metacarpal 
Triangular epiphysis of the 1st metacarpal 

Synonyms
Exact Synonyms: Bracket shaped end part of 1st long bone of hand
Xrefs: UMLS:C4024107
Definition Sources: https://orcid.org/0000-0002-0736-9199, PMID:24432108

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