Problems in differential diagnosis of lesions of the lower portion of the esophagus and the cardia.
D002299:Cardia; D003937:Diagnosis, Differential; D004194:Disease; D004931:Esophageal Achalasia / Q000175:diagnosis*; D004935:Esophageal Diseases; D004947:Esophagus; D006801:Humans
CARDIOSPASM/diagnosis; ESOPHAGUS/diseases