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[Hemorrhage of Peritoneal Dissemination of the Ascending Colon Cancer Successfully Controlled by Palliative Radiotherapy-A Case Report].

An 81-year-old man underwent laparoscopic right hemicolectomy for ascending colon cancer. The postoperative diagnosis was tub1>tub2, pT4apN1bM0, pStage Ⅲb, ascending colon cancer. At 1 year 4 months after operation, abdominal CT showed dissemination around anastomosis. The patient has been treated with first-line systematic chemotherapy(capecitabine, oxaliplatin and bevacizumab). Epigastralgia and grade 4 anemia were observed at 5 years 7 months after initiation of chemotherapy when he was treated with second-line chemotherapy(capecitabine, irinotecan and bevacizumab). As abdominal CT showed that the dissemination progressed rapidly in size 30 mm to 100 mm, we diagnosed tumor bleeding in the dissemination. Palliative radiotherapy(30 Gy/10 Fr)for the dissemination was performed. Hemostasis and tumor shrinkage were achieved, and epigastralgia improved after receiving the radiation therapy. The patient discharged our hospital on 31 days form admission. We believe that palliative radiotherapy is effective to recurrent colon cancer with tumor bleeding.