This OESO Congress is a forum for the exchange of information about neoplasms of the esophagus, both benign and mahgnant, as weh as the abnormahties associated with or predisposing to them. Throughout this Congress, pathologists are presenting different morphologic aspects of these conditions, but this information darts in and out of the more chnically oriented discussions which concentrate on symptoms, physical status of the patients, various treatment programs, and, ultimately, survival statistics.