[Synchronous esophageal and stomach neoplasm: importance of diagnosis and treatment].

The association of esophageal and gastric cancer has been described because of the better technology in methods for diagnosis. In surgery for esophageal cancer, a gastric tube is often prepared to provide a new route for oral ingestion. Although patients with simultaneous esophageal cancer and gastric cancer have been reported, it is often difficult to diagnose the coexistence of gastric cancer preoperatively due to the presence of esophageal stenosis. In this paper we report on one case of the rare combination of squamous cell cancer of the esophagus and simultaneous adenocarcinoma of the stomach.