Liver Embryonal Sarcoma

**Semantic type:** Neoplastic Process

**Definition:** 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.

**Synonyms:** - ESL - Embryonal Sarcoma - Embryonal Sarcoma (Undifferentiated Sarcoma) - Embryonal Sarcoma of the Liver - Embryonal sarcoma - UES - Undifferentiated (Embryonal) Sarcoma - Undifferentiated (Embryonal) Sarcoma of the Liver - Undifferentiated Sarcoma - Undifferentiated sarcoma