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Ontology Browser
Term:
Parent Terms Term With Siblings Child Terms
Abnormality of the epiphysis of the 1st metacarpal +   
Aplasia of metacarpal bones +   
Aplasia/Hypoplasia of the 1st metacarpal +   
Aplasia or Hypoplasia affecting the 1st metacarpal. In contrast to the metacarpals 2-5, the first metacarpal is embryologically of phalangeal origin and as such equivalent to the proximal phalanges of the digits 2-5 (whereas the proximal phalanx of the thumb is equivalent to the middle phalanges of the other digits).
Aplasia/Hypoplasia of the 2nd metacarpal +   
Aplasia/Hypoplasia of the 3rd metacarpal +   
Aplasia/Hypoplasia of the 4th metacarpal +   
Aplasia/Hypoplasia of the 5th metacarpal +   
Aplasia/Hypoplasia of the proximal phalanx of the thumb +   
Broad 1st metacarpal  
Bullet-shaped 1st metacarpal 
Curved 1st metacarpal 
Duplication of the 1st metacarpal +   
Fractured metacarpal bone of digit 1 
Osteolytic defects of the 1st metacarpal 
Partial absence of thumb +   
Patchy sclerosis of the 1st metacarpal 
Short metacarpal +   
Short phalanx of the thumb +   
Synostosis involving the 1st metacarpal +   
Triangular shaped 1st metacarpal 

Synonyms
Exact Synonyms: Absent/small 1st long bone of hand ;   Absent/underdeveloped 1st long bone of hand
Xrefs: UMLS:C4024098
Definition Sources: https://orcid.org/0000-0002-0736-9199

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