Synchronous triple early cancers occurring in the stomach,colon and gallbladder

We report an unusual case of synchronous triple early cancers of the stomach, gallbladder and sigmoid colon. The patient was a 70-year-old man. Gastrointestinal endoscopy at a medical check-up initially revealed early gastric cancer. A thorough preoperative investigation showed a gallbladder tumour and early colon cancer. Endoscopic mucosal resection was performed for the colon cancer. Microscopically, the specimen showed well-differentiated adenocarcinoma involving the submucosal layer. Distal partial gastrectomy (D1) and simple cholecystectomy with lymph node dissection were also performed. The histopathological diagnosis was well-differentiated adenocarcinoma in the stomach (T1, N0, M0; Stage IA) and poorly differentiated papillary adenocarcinoma (T1, N0, M0; Stage I) in the gallbladder. The patient was doing well with no evidence of recurrence 6 months after surgery.