Mondo Description A malignant tumor that originates in the nuclear layer of the retina. As the most common primary tumor of the eye in children, retinoblastoma is still relatively uncommon, accounting for only 1% of all malignant tumors in pediatric patients. Approximately 95% of cases are diagnosed before age 5. These tumors may be multifocal, bilateral, congenital, inherited, or acquired. Seventy-five percent of retinoblastomas are unilateral; 60% occur sporadically. A predisposition to retinoblastoma has been associated with 13q14 cytogenetic abnormalities. Patients with the inherited form also appear to be at increased risk for secondary nonocular malignancies such as osteosarcoma, malignant fibrous histiocytoma, and fibrosarcoma.
Disease Ontology Description A retinal cell cancer and malignant neoplasm of retina and neuroblastoma and neuroendocrine tumors that derives_from the tissues of the retina.
Counts of Target Development Levels for diseases known to be associated with this disease. If the disease has a valid DOID, targets known to be associated with all child diseases are aggregated. Click "Explore Associated Targets" to view more facets and details for the target list.
This disease has been annotated by GARD as a rare disease.
Description from Mondo Disease Ontology.
Description from Disease Ontology
DataSources which have contributed target associations to this disease, and the identifiers by which the disease is referenced.
DOID:768
GARD:0007563
MESH:D012175
NCIT:C7541
ONCOTREE:RBL
Orphanet:790
SCTID:370967009
UMLS:C0035335
MONDO:0008380
High level summary of knowledge for a disease, including descriptions and datasource references.