NCIt definition : A malignant mesenchymal neoplasm that affects the uterine corpus, and rarely, the
ovaries, cervix, and vagina. 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.;
Alternative definition : CDISC: A malignant, mesenchymal tumor of the uterine stroma.;