Human Phenotype Ontology 
Grandparent Node:
expand
Abnormal thumb morphology (HP:0001172)help
Grandparent Node:
expand
Triangular shaped phalanges of the hand (HP:0009774)help
Parent Node:
expand
Abnormality of thumb phalanx (HP:0009602)help
..Starting node
..expand
Triangular shaped thumb phalanx (HP:0009657)help
Term ID: 9657
Name: Triangular shaped thumb phalanx
Synonym: Triangular shaped phalanges of the thumb; Triangular shaped thumb bone; Triangular thumb phalanges
Definition: Abnormal shape of one or more phalanges of the thumb such that affected phalanges resemble a triangle.
Comments:
Reference: HP:0009657
Genes and Diseases: SELECT DISTINCT 'HP:0009657' AS Input, t2.acc as HPO_ID, t2.name as HPO_term, g.Distance, t1.Entrez_gene AS Gene, t1.Entrez_gene_id AS Gene_id_entrez, t1.HGNC_ID, t1.DiseaseId, t1.DiseaseName, t1.Frequency, t1.Onset #, t1.ConceptID, Source, t1.Typical_association , h.Variants AS HGMD_variants, c.variants AS ClinVar_variants FROM hpo202212.graph_path AS g, hpo202212.term AS t, hpo202212.term AS t2 LEFT JOIN hpo202212.hpo_phenotype_to_genes as t1 ON (t1.HPO = t2.acc) LEFT JOIN gb_exome.clinvar_variation_latest_sum AS c ON ( c.Gene = t1.Entrez_Gene) LEFT JOIN gb_exome.hgmd_allmumt_sum_latest AS h ON (h.gene = t1.Entrez_Gene ) WHERE (t.acc ='HP:0009657' AND g.term1_id = t.id AND g.distance <=20 AND t2.id = g.term2_id) order by g.distance, gene, DiseaseName;