ERBB2 and gastric cancer: Chemotherapy using low-dose fluorouracil plus cisplatin instead of the recommended first line regimen for HER2-negative gastric cancer such as S-1 plus cisplatin and capecitabine plus oxaliplatin was commenced because we had to reduce the treatment intensity due to deterioration of general condition after the surgery, but unfortunately lung metastases emerged in addition to liver metastases, resulting in the death of the patient 12 months after the surgery.