Esophageal achalasia or dilatation.
D000818:Animals; D003937:Diagnosis, Differential; D004106:Dilatation / Q000000981:diagnostic imaging / Q000662:veterinary; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D004935:Esophageal Diseases / Q000000981:diagnostic imaging / Q000662:veterinary*; D008297:Male; D011859:Radiography