MONDO_0003866 (liver extraskeletal osteosarcoma) is an osteosarcoma arising from the liver. Also known as: hepatic extraskeletal osteosarcoma, hepatic osteogenic sarcoma, hepatic osteosarcoma, liver osteogenic sarcoma, liver osteosarcoma, liver osteosarcoma (disease), osteogenic sarcoma of liver, osteogenic sarcoma of the liver.