Endometrial stromal tumors are rare uterine mesenchymal neoplasms. Endometrial stromal sarcomas (ESSs) are of endometrial stromal origin that accounts for approximately 1% of all uterine malignant neoplasms. ESS is classified into endometrial stromal nodule (ESN). low-grade ESS (LG-ESS). https://www.ngetikin.com/