liver sarcoma undifferentiated (embryonal) sarcoma https://github.com/monarch-initiative/mondo/issues/8583 EFO:0000730 UMLS:C0855073 undifferentiated sarcoma sarcoma, undifferentiated, malignant undifferentiated (embryonal) sarcoma embryonal sarcoma, undifferentiated NCIT:C27096 Reason of obsoletion: duplicate. This will be merged with MONDO:0015795 undifferentiated embryonal sarcoma of the liver GARD:0008650 NANDO:2200058 embryonal sarcoma (undifferentiated sarcoma) UES MEDGEN:163512 ICDO:8991/3 An aggressive malignant mesenchymal neoplasm that arises from the liver and usually occurs in older children. It is composed of immature spindle, stellate, polymorphous, and giant cells. MONDO:0005102 2025-04-01 embryonal sarcoma ICDO:8805/3