A case of high-grade endometrial stromal sarcoma arising from endometriosis in the cul-de-sac

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This case report details a high-grade endometrial stromal sarcoma that arose from endometriosis in the cul-de-sac of a 37-year-old woman, highlighting ESS as a differential diagnosis for malignant endometriosis transformation.

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Abstract

This report describes a rare case of high-grade endometrial stromal sarcoma (ESS) arising from pathologically confirmed endometriosis in the cul-de-sac. A 37-year-old woman presented with irregular menstruation, pelvic pain, and diarrhea. Magnetic resonance imaging and colon biopsy suggested endometriotic nodule of the cul-de-sac. The tumor size was reduced with hormonal therapy, and the residual tumor was excised, resulting in the pathologic diagnosis of endometriosis. Two years later, a soft mass reappeared with rapid growth. Tumor extraction was performed, and the histopathologic diagnosis was high-grade ESS. Neither hormonal therapy nor chemotherapy was effective, and the patient died 6 months postoperatively. ESS should be included in the differential diagnosis of malignant transformation of endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Cell Transformation, Neoplastic Endometrial Neoplasms Endometriosis Sarcoma, Endometrial Stromal Adult Cell Transformation, Neoplastic Combined Modality Therapy Disease Progression Endometrial Neoplasms Endometrial Neoplasms Endometrial Neoplasms Endometriosis Fatal Outcome Female Humans Magnetic Resonance Imaging Sarcoma, Endometrial Stromal Sarcoma, Endometrial Stromal Sarcoma, Endometrial Stromal

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