Human Phenotype Ontology 
Grandparent Node:
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Abnormal middle phalanx morphology of the hand (HP:0009833)help
Grandparent Node:
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Abnormal proximal phalanx morphology of the hand (HP:0009834)help
Grandparent Node:
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Duplication of phalanx of hand (HP:0009997)help
Parent Node:
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Complete duplication of phalanx of hand (HP:0009998)help
Parent Node:
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Duplication of the middle phalanx of hand (HP:0010008)help
..Starting node
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Complete duplication of the middle phalanges of the hand (HP:0010002)help
Term ID: 10002
Name: Complete duplication of the middle phalanges of the hand
Synonym: Complete duplication of the middle bones of the hand
Definition: A complete duplication affecting one or more of the middle phalanges of the hand. As opposed to a partial duplication were there is still a variable degree of fusion between the duplicated bones, a complete duplication leads to two separate bones appearing side to side (radio-ulnar axis) as seen on x-rays. A duplication leading to an accessory bone appearing in the proximo-distal axis on x-rays, this is actually a different entity called a pseudoepiphysis (see corresponding terms) sometimes also referred to as hyperphalangism.
Comments:
Reference: HP:0010002
Genes and Diseases:
 
       Child Nodes:
........expandComplete duplication of proximal phalanx of the thumb (HP:0009608) help
........expandComplete duplication of the middle phalanx of the 2nd finger (HP:0009952) help
........expandComplete duplication of the middle phalanx of the 3rd finger (HP:0009966) help
........expandComplete duplication of the middle phalanx of the 4th finger (HP:0009979) help
........expandComplete duplication of the middle phalanx of the 5th finger (HP:0009992) help

 Sister Nodes: 
..expandDuplication of the middle phalanx of the 2nd finger (HP:0009949) help
..expandDuplication of the middle phalanx of the 3rd finger (HP:0009963) help
..expandDuplication of the middle phalanx of the 4th finger (HP:0009976) help
..expandDuplication of the middle phalanx of the 5th finger (HP:0009989) help
..expandDuplication of the proximal phalanx of the thumb (HP:0009613) help
..expandPartial duplication of the middle phalanges of the hand (HP:0010005) help


Genes (2) :CHSY1 RAB23

Diseases (2) :ORPHA:363417 OMIM:201000
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.