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Ontology Browser

Term:
Aplasia/Hypoplasia of the proximal phalanx of the thumb (HP:0009629)
Annotations: Rat: (0) Mouse: (0) Human: (5) Chinchilla: (0) Bonobo: (0) Dog: (0) Squirrel: (0) Pig: (0)
Parent Terms Term With Siblings Child Terms
Abnormality of the epiphysis of the proximal phalanx of the thumb +  
Aplasia/Hypoplasia of the 1st metacarpal +   
Aplasia/Hypoplasia of the proximal phalanx of the thumb +   
This term applies if the proximal phalanx of the thumb is either small/hypoplastic or absent. In contrast to the proximal phalanges of the digits 2-5, the proximal phalanx of the thumb is embryologically equivalent to the middle phalanges of the other digits, whereas the first metacarpal is embryologically of phalangeal origin and as such equivalent to the proximal phalanges of the other digits.
Broad proximal phalanx of the thumb 
Bullet-shaped proximal phalanx of the thumb 
Curved proximal phalanx of the thumb 
Duplication of the proximal phalanx of the thumb +   
Osteolytic defect of the proximal phalanx of the thumb 
Partial absence of thumb +   
Patchy sclerosis of the proximal phalanx of the thumb 
Short phalanx of the thumb +   
Synostosis of thumb phalanx +   
Triangular shaped proximal phalanx of the thumb  

Synonyms
Exact Synonyms: Absent/small innermost thumb bone ;   Absent/underdeveloped innermost thumb bone
Xrefs: UMLS:C4024268
Definition Sources: HPO:curators

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