[Esophageal stenosis caused by ectopic tracheo-bronchial cartilage: report of 2 cases].
D002356:Cartilage / Q000002:abnormalities*; D004940:Esophageal Stenosis / Q000151:congenital* / Q000209:etiology / Q000601:surgery; D006801:Humans; D007223:Infant; D008297:Male; D014132:Trachea / Q000002:abnormalities*