Achalasia of the esophagus simulating pericardial effusion--a problem in cardiographic diagnosis. Report of a case.
D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010490:Pericardial Effusion / Q000175:diagnosis*