[A Case of Melena Caused by Peritoneal Dissemination, Treated with Interventional Radiology].

We reported a case of melena caused by perineal dissemination and treated with radiologic intervention. The patient was a 67-year-old woman, who underwent a partial duodenectomy for duodenal(4th portion)cancer in 2013. The pathological examination revealed that the tumor was tub2>por2 adenocarcinoma, SE, n+(10/20), M0. The patient received 2 courses of cisplatin(CDDP)plus S-1 and 8 courses of S-1 monotherapy. About 2 years postoperatively, the patient was hospitalized due to unauthorized bleeding. Metrorrhagia was diagnosed as intrapelvic dissemination based on abdominal computed tomography in April 2016. The patient underwent sigmoid colostomy because she developed bowel obstruction. Postoperatively, the patient received 6 courses of capecitabine plus oxaliplatin(CapeOX)plus bevacizumab. Three months later, a reduction in the recurrent lesion was observed. However, after 6 months, the patient was again hospitalized due to melena. Her condition improved after receivinga blood transfusion and infusinga hemostat. In order to control the hemorrhage, radiation therapy of 50 Gy/25 fractions to the intrapelvic dissemination was conducted. Bleedingcould not be controlled by conservative treatment with blood transfusion. Therefore, radiologic intervention was performed for melena caused by peritoneal dissemination. Neither rebleedingnor symptoms of possible ischemic complications were observed after the intervention until she died 3 months later.