Ovarian Low Grade Endometrioid Stromal Sarcoma

**Semantic type:** Neoplastic Process

**Definition:** A rare invasive mesenchymal tumor that arises from the ovary. It is characterized by the absence of marked pleomorphism and nuclear atypia in the neoplastic mesenchymal cells. It may have a favorable clinical outcome.

**Synonyms:** - Endometrioid Stromal Sarcoma of the Ovary - Low Grade Endometrioid Stromal Sarcoma of the Ovary - Ovarian Endometrioid Stromal Sarcoma