Abstract
A 50-year-old man diagnosed with a gallbladder tumor at a medical checkup. He underwent distal gasteroctomy for gastric cancer when he was 48-year-old, and treated by S-1 as adjuvant chemotherapy. Cholecystectomy with hepatic resection and extrahepatic bile duct resection was performed under the diagnosis of gallbladder cancer. Resected specimen revealed that the tumor was located under the mucosa of the gallbladder. On histopathology, the tumor was adenocarcinoma and had the same histological features as the previous gastric adenocarcinoma, so the final diagnosis was gallbladder metastasis from the previous gastric cancer. Gallbladder metastasis from gastric cancer is rare, especially unsynchronous metastasis is very rare. Herein, we report this rare case with a review of the literature.
