Human Phenotype Ontology 
Grandparent Node:
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Hand polydactyly (HP:0001161)help
Grandparent Node:
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Mesoaxial polydactyly (HP:0100260)help
Parent Node:
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Abnormal 2nd finger morphology (HP:0004100)help
Parent Node:
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Mesoaxial hand polydactyly (HP:0006159)help
..Starting node
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Polydactyly affecting the 2nd finger (HP:0009946)help
Term ID: 9946
Name: Polydactyly affecting the 2nd finger
Synonym: Extra index finger
Definition:
Comments:
Reference: HP:0009946
Genes and Diseases:
 
       Child Nodes:
........expandDuplication of phalanx of 2nd finger (HP:0009945) help
................... HP:0009947 Duplication of the proximal phalanx of the 2nd finger
................... HP:0009948 Duplication of the distal phalanx of the 2nd finger
................... HP:0009949 Duplication of the middle phalanx of the 2nd finger
................... HP:0009956 Partial duplication of the phalanges of the 2nd finger
................... HP:0009957 Complete duplication of the phalanges of the 2nd finger

 Sister Nodes: 
..expandPolydactyly affecting the 3rd finger (HP:0009958) help
..expandPolydactyly affecting the 4th finger (HP:0009971) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0009946HP:0009946Polydactyly affecting the 2nd finger0FGFR2 CL E G H22633689OMIM:101400Saethre-Chotzen syndrome175
HP:0009946HP:0009946Polydactyly affecting the 2nd finger0TWIST1 CL E G H729112428OMIM:101400Saethre-Chotzen syndrome18
HP:0009946HP:0009945Duplication of phalanx of 2nd finger1FGFR2 CL E G H22633689OMIM:101400Saethre-Chotzen syndrome175
HP:0009946HP:0009945Duplication of phalanx of 2nd finger1TWIST1 CL E G H729112428OMIM:101400Saethre-Chotzen syndrome18
HP:0009946HP:0009949Duplication of the middle phalanx of the 2nd finger2 CL E G H
HP:0009946HP:0009957Complete duplication of the phalanges of the 2nd finger2 CL E G H
HP:0009946HP:0009947Duplication of the proximal phalanx of the 2nd finger2 CL E G H
HP:0009946HP:0009948Duplication of the distal phalanx of the 2nd finger2FGFR2 CL E G H22633689OMIM:101400Saethre-Chotzen syndrome175
HP:0009946HP:0009956Partial duplication of the phalanges of the 2nd finger2FGFR2 CL E G H22633689OMIM:101400Saethre-Chotzen syndrome175
HP:0009946HP:0009948Duplication of the distal phalanx of the 2nd finger2TWIST1 CL E G H729112428OMIM:101400Saethre-Chotzen syndrome18
HP:0009946HP:0009956Partial duplication of the phalanges of the 2nd finger2TWIST1 CL E G H729112428OMIM:101400Saethre-Chotzen syndrome18
HP:0009946HP:0009950Complete duplication of the distal phalanx of the 2nd finger3 CL E G H
HP:0009946HP:0009955Partial duplication of the proximal phalanx of the 2nd finger3 CL E G H
HP:0009946HP:0009954Complete duplication of the proximal phalanx of the 2nd finger3 CL E G H
HP:0009946HP:0009953Partial duplication of the middle phalanx of the 2nd finger3 CL E G H
HP:0009946HP:0009952Complete duplication of the middle phalanx of the 2nd finger3 CL E G H
HP:0009946HP:0009951Partial duplication of the distal phalanx of the 2nd finger3FGFR2 CL E G H22633689OMIM:101400Saethre-Chotzen syndrome.175
HP:0009946HP:0009951Partial duplication of the distal phalanx of the 2nd finger3TWIST1 CL E G H729112428OMIM:101400Saethre-Chotzen syndrome.18


Genes (2) :FGFR2 TWIST1

Diseases (1) :OMIM:101400
 

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