Achalasia cardia.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004931:Esophageal Achalasia / Q000000981:diagnostic imaging / Q000601:surgery*; D004945:Esophagoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012737:Sex Factors