[A case of advanced gastric cancer found to be remaining by gastrectomy after a clinically complete response to chemotherapy].

[carcinoma of the gallbladder]

The patient was a 72 -year -old woman diagnosed with advanced gastric cancer , hepatic portal lymph node and para-aortic lymph node metastases . After five courses of S-1 /CDDP combination therapy , both the primary tumor and lymph node metastases disappeared clinically . She wished to continue chemotherapy instead of having a resection . After three more courses of S-1 /CDDP therapy , gastric cancer and lymph node metastases were still completely regressed , but complications of carcinoma of the gallbladder were suspected . Gastrectomy was performed with cholecystectomy , and a histopathological examination revealed cancer cells remaining in the gastric submucosa and xanthogranulomatous cholecystitis . We consider surgical therapy for clinically completely disappearing advanced gastric cancer by chemotherapy , in addition to case report .