Human Phenotype Ontology 
Grandparent Node:
Abnormal retinal morphology (HP:0000479)help
Grandparent Node:
Neoplasm of the eye (HP:0100012)help
Parent Node:
Embryonal neoplasm (HP:0002898)help
Parent Node:
Neuroepithelial neoplasm (HP:0030063)help
Parent Node:
Retinal neoplasm (HP:0012777)help
..Starting node
Retinoblastoma (HP:0009919)help
Term ID: 9919
Name: Retinoblastoma
Synonym: Retina tumor; Retina tumour
Definition: A tumor of the eye originating from cells of the retina.
Reference: HP:0009919
Genes and Diseases:
       Child Nodes:

 Sister Nodes: 
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
HPO disease - gene - phenotype typical associations:
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0009919HP:0009919Retinoblastoma0CHEK2 CL E G H1120016627OMIM:259500Osteosarcoma.833
HP:0009919HP:0009919Retinoblastoma0RB1 CL E G H59259884ORPHA:1587Monosomy 13q14HP:0040282 - Frequent365
HP:0009919HP:0009919Retinoblastoma0RB1 CL E G H59259884OMIM:259500Osteosarcoma.365
HP:0009919HP:0009919Retinoblastoma0RB1 CL E G H59259884OMIM:180200RETINOBLASTOMA.365
HP:0009919HP:0009919Retinoblastoma0TP53 CL E G H715711998OMIM:259500Osteosarcoma.911

Genes (3) :CHEK2 RB1 TP53

Diseases (3) :OMIM:259500 ORPHA:1587 OMIM:180200

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