[Functional obstruction of the cardia and cancer localized in the cardia and esophagus].

The work is based on the experience with the exploration and treatment of 310 patients with the functional obstruction of the cardia which are found to have two pathogenetic forms-cardiospasm and cardiac achalasia. Errors in the diagnosis in the outpatient department were 38%. Causes of the diagnostic errors and the differential-diagnostic tables are given. Against the background of the continuous course of cardiospasm and cardiac achalasia there appeared carcinoma of the cardiac-esophageal localization in 2,5% of cases. All the patients subjected to operations or instrumental cardiodilatation who have gastro-esophagal reflux should be taken under special control with periodic endoscopic examinations.