Small intestine metastasis from endometrial carcinoma initially presented as enterocutaneous fistula: a case report and literature review

Although endometrial cancer is the fourth most common malignancy among women, it rarely metastasizes to the small intestine. Cases of endometrial recurrence to the intestine clinically present with secondary anemia, melena, abdominal cramps, and epigastric pain. Only a dozen cases are reported in the literature, but none presented with an enterocutaneous fistula. In this report, we present a case of an 88-year-old female patient previously treated for endometrial adenocarcinoma with surgery and adjuvant radiotherapy. Fourteen months after the surgery, the patient presented with an enterocutaneous fistula on the anterior abdominal wall, which was confirmed to be a metastasis from the primary tumor. To our knowledge, this is the first case of endometrial cancer metastasizing to the small intestine with involvement of the anterior abdominal wall and the occurrence of an enterocutaneous fistula, which was treated with radical surgery.