Stomach metastasis of low grade endometrial stromal sarcoma

Abstract

Endometrial stromal sarcomas (ESS) are rare mesenchymal tumors of the uterus. Low-grade endometrial stromalsarcoma (LGESS) constitutes approximately two-thirds of ESS. Metastasis of LGESS can be seen after many years. Inthe endoscopic examination, a 57-year-old female patient with dyspeptic complaints was diagnosed withmesenchymal originated tumor located in the antrum of the stomach. It is reported that the patient underwent ahysterectomy and unilateral oophorectomy 15 years ago due to vaginal bleeding.A mass in the stomach approximately 5 cm in diameter was detected in the abdominal contrast-enhanced computedtomography. She underwent subtotal gastrectomy and omentectomy, and immunohistological examination wasreported as LGESS. As far as we know, it is the first case reported as a LGESS metastasis to stomach so far. We shouldbear in mind that metastasis of LGESS may be seen after many years. It should be included in differential diagnosis ofgastrointestinal stromal tumors.