[A case of remnant gastric cancer seven years after initial diagnosis].

A 79-year-old woman was admitted with cholangitis caused by a common bile duct stone (CBDS), and the CBDS was removed by endoscopic sphincterotomy (EST). The patient had undergone distal gastrectomy for gastric cancer located in the lower body of the stomach in 2006. A flat, elevated lesion of the cardiac region was noted in the preoperative examination; however, this lesion was not treated because there was no clear evidence of malignancy upon histopathological examination of the biopsy specimen. Following esophagogastroduodenoscopy in 2013, the macroscopic findings had changed to infiltrative cancer. The lesion was considered to be a submucosal(sm)cancer, and the patient underwent simultaneous cholecystectomy and remnant gastrectomy. The histopathological examination of the surgical specimens revealed a well differentiated tubular adenocarcinoma, type 0-IIb+0-IIa, tub1>tub2, pT1b1, ly0, v0, n0.