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[Adenocarcinoma adjoining to the gastric antrum and minute carcinoid--a case report].

The simultaneous occurrence of carcinoma and carcinoid in the stomach is rare. Only 5 cases have been reported in the literature so far. Our patient developed double primary neoplasms adjoining the gastric antrum. One was an early ulcerated adenocarcinoma limited to the submucosa, the other a minute carcinoid also within the submucosa. A large amount of 5-HIAA, but a normal amount of histamine, was excreted in the urine. The carcinoid syndrome, however, was absent through clinical course. The patient died of liver metastasis 3.5 months after gastrectomy. Microscopic examination after autopsy disclosed that the metastases consisted of only carcinoid cells.