Human Phenotype Ontology 
Grandparent Node:
Abnormal eye morphology (HP:0012372)help
Grandparent Node:
Neoplasm by anatomical site (HP:0011793)help
Parent Node:
Abnormal retinal morphology (HP:0000479)help
Parent Node:
Neoplasm of the eye (HP:0100012)help
..Starting node
Retinal neoplasm (HP:0012777)help
Term ID: 12777
Name: Retinal neoplasm
Definition: A tumor (abnormal growth of tissue) of the retina.
Reference: HP:0012777
Genes and Diseases:
       Child Nodes:
........expandRetinoblastoma (HP:0009919) help

 Sister Nodes: 
..expandHamartoma of the eye (HP:0010568) help
..expandOrbital schwannoma (HP:0025604) help
..expandScleral schwannoma (HP:0100011) help
..expandUveal melanoma (HP:0007716) help
InputHPO IDHPO termDistanceGeneGene id entrezDiseaseIdDiseaseNameDiseaseMIMConceptIDSourceTypical associationHGMD variantsClinVar variantsHGNC IDGeneMIM
HPO disease - gene - phenotype typical associations:
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0012777HP:0012777Retinal neoplasm0 CL E G H
HP:0012777HP:0009919Retinoblastoma1 CL E G H

Genes (2) :CHEK2 RB1

Diseases (3) :259500 1587 180200

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is August 2021 release.