An osteosarcoma arising from the kidney. The disease is Monarch Disease Ontology entry MONDO_0003721 (kidney osteogenic sarcoma). Also known as: kidney extraskeletal osteosarcoma, kidney osteosarcoma, kidney osteosarcoma (disease), osteogenic sarcoma of kidney, osteogenic sarcoma of the kidney, osteosarcoma of kidney, osteosarcoma of the kidney, renal extraskeletal osteosarcoma.