title: Congenital oesophageal strictures due to cartilaginous rings.
abstract: Two cases of distal oesophageal stricture secondary to tracheo-bronchial remnants containing cartilage are presented. The clinical histories and radiographic appearances of these lesions are discussed as is the postulated embryogenesis. A characteristic finding, when present, is the linear collection of barium projecting horizontally from the area of stricture, representing respiratory epithelial ducts.
mesh_terms: D001466:Barium Sulfate; D002356:Cartilage; D002648:Child; D000013:Congenital Abnormalities / Q000150:complications; D004106:Dilatation; D004940:Esophageal Stenosis / Q000151:congenital* / Q000000981:diagnostic imaging / Q000503:physiopathology; D004947:Esophagus / Q000002:abnormalities* / Q000503:physiopathology; D006801:Humans; D007223:Infant; D011859:Radiography
chemical_list: D001466:Barium Sulfate