Abstract
In October 2001, a 60-year-old man underwent distal partial gastrectomy for gastric cancer, diagnosed pathological by as moderately differentiated adenocarcinoma, depth sm, no, stage Ia. In September 2004, endscopy showed a type 2 tumor on the posterior wall of the remnant stomach, diagnosed pathological by as poorly differentiated adenocarcinoma. He was readmitted for resection of the remnant stomach and spleen and partial left adrenalectomy in September 2004.NSE and synaptophisin were slightly positive in immunohistological examination, but CAM5.2 and CEA were negative, which is compatible with small-cell carcinoma of the remnant stomach. He underwent postoperative oral chemotherapy using TS-1 after being discharged and remains free of recurrence. To our knowledge, only five case of small-cell carcinoma of the remnant stomach have been reported in the Japanese literature.
