[A Case Report of Bypass Surgery for a Perforated and Unresectable Gastric Cancer].

A 74-year-old man was admitted to a clinic because of epigastralgia in June 2018. He was referred to our hospital for further examination of right hydronephrosis. He was diagnosed as having type 2 gastric cancer in the middle gastric body and lesser curvature, with an upper gastric fiber, swollen para-aortic lymph node, and right hydronephrosis by using abdominal computed tomography. PET-CT revealed no hot spot in the para-aortic lymph node but revealed a hot spot in the lower small bowel. He was admitted to our hospital because of severe abdominal pain and appetite loss and underwent a reduction and palliative surgery for the unresectable gastric cancer. The omental cavity was perforated and penetrated into the retroperitoneum. He underwent esophageal jejunal bypass and intestinal fistula tube insertion in the stomach. He had a central vein port and was discharged from our hospital. He was able to eat during his short overnight stay at our hospital after the operation but died on postoperative day 30.