[Radiology of the duodenal bulb and arch in achalasia].
D004194:Disease; D004378:Duodenal Diseases; D004386:Duodenum / Q000000981:diagnostic imaging*; D004931:Esophageal Achalasia; D006801:Humans; D011859:Radiography; D011871:Radiology
DUODENUM/diseases; DUODENUM/radiography
Radiologia do bulbo e do arco duodenal na acalásia.