Human Phenotype Ontology 
Grandparent Node:
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Abnormal sacrum morphology (HP:0005107)help
Grandparent Node:
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Aplasia/Hypoplasia involving the vertebral column (HP:0008518)help
Parent Node:
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Aplasia/Hypoplasia of the sacrum (HP:0008517)help
..Starting node
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Hypoplastic sacrum (HP:0004590)help
Term ID: 4590
Name: Hypoplastic sacrum
Synonym: Small sacrum
Definition:
Comments:
Reference: HP:0004590
Genes and Diseases:
 
       Child Nodes:
........expandHypoplastic sacral vertebrae (HP:0008475) help

 Sister Nodes: 
..expandAbsence of the sacrum (HP:0010305) help
..expandAbsent/hypoplastic coccyx (HP:0008436) help


Genes (6) :FANCL POC1A ROR2 RPS19 TP63 TRIP11

Diseases (7) :OMIM:614083 OMIM:614813 OMIM:113000 OMIM:268310 OMIM:105650 OMIM:604292 OMIM:200600
 

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