RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A germ cell cancer that derives_from germ cells that are found in areas of the body other than the ovary or testicle. The tumors originate in the sperm forming cells in the testicles or egg producing cells in the ovary. (DO)
Synonyms:
exact_synonym:
extragonadal germ cell malignant tumor; neoplasm of Extragonadal germ cell; tumor of extragonadal germ cell