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Primary Extrauterine Endometrial Stromal Sarcoma in the Sigmoid Colon

대한대장항문학회지 2015년 31권 2호 p.68 ~ 73
 ( Son Hyun-Jin ) - Eulji University School of Medicine Department of Pathology

 ( Kim Joo-Heon ) - Eulji University School of Medicine Department of Pathology
 ( Kang Dong-Wook ) - Eulji University School of Medicine Department of Pathology
 ( Lee Hye-Kyung ) - Eulji University School of Medicine Department of Pathology
 ( Park Mee-Ja ) - Eulji University School of Medicine Department of Pathology
 ( Lee Seung-Yun ) - Eulji University School of Medicine Department of Pathology

Abstract


An endometrial stromal sarcoma (ESS) is an uncommon uterine neoplasm, and its primary occurrence in the intestine as an extrauterine ESS (EESS) is exceedingly rare. We hereby report a primary EESS arising in the sigmoid colon with a review of the literature. A 52-year-old woman presented with bloody stool and underwent a colon fiberscopy, which revealed a fungating mass obstructing the lumen at the distal sigmoid. A laparoscopic low anterior resection was performed, and an umbilicated polypoid mass was identified; on section, it had infiltrated the mesocolic fat and measured 3.8 cm × 2.5 cm. The tumor showed geographic sheets or nests composed of relatively monotonous stromal cells, expansion or infiltration to the proper muscle and mesocolic fat, and extensive lymphovascular invasion and metastasis to regional lymph nodes and the pelvic peritoneum. The tumor cells were strongly and diffusely immunoreactive for CD10, but negative for c-kit, CD34, and Dog1. Two months later, a hysterectomy with a bilateral salpingo-oophorectomy was performed, and no evidence of an ESS was found in the uterus.

키워드

Endometrial stromal sarcoma; Extrauterine; Sigmoid colon; CD10
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