label: Endometrioid Stromal Sarcoma
label_lc: endometrioid stromal sarcoma
description: A malignant mesenchymal neoplasm that affects the uterine corpus and rarely the ovaries, cervix, vagina, and peritoneum. In the uterine corpus it is classified as low-grade or high-grade endometrial stromal sarcoma. In the remainder of the anatomic sites, it is classified as low-grade endometrioid stromal sarcoma.