J Menopausal Med.  2023 Dec;29(3):139-142. 10.6118/jmm.23030.

Extrauterine Undifferentiated Uterine Sarcoma Arising from Bladder Endometriosis in a Postmenopausal Woman: A Case Report

Affiliations
  • 1Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Abstract

Endometriosis (EMS) is a rare condition in postmenopausal women. The incidence of transition from EMS to malignancy is as low as 1%, with endometrial stromal tumors (ESTs) occurring at an even lower incidence of 0.7%. Undifferentiated uterine sarcomas (UUSs) are a subtype of ESTs that account for 25% of all ESTs. Extrauterine UUSs are exceptionally rare, with only a few reported cases in the literature. We present the case of a woman who underwent surgery for deep infiltrating EMS and was later diagnosed with UUS, which originated from the bladder after surgical menopause.

Keyword

Endometrial stromal tumors; Endometriosis; Urinary bladder
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