The Paterson-Kelly lesion.
D000293:Adolescent; D003677:Deficiency Diseases / Q000150:complications; D003680:Deglutition Disorders / Q000209:etiology*; D004935:Esophageal Diseases / Q000000981:diagnostic imaging; D004940:Esophageal Stenosis; D006801:Humans; D011859:Radiography; D014804:Vitamin B Deficiency