[Prolonged persistance of a foreign body in the entrance of the esophagus].
D002675:Child, Preschool; D004947:Esophagus / Q000000981:diagnostic imaging / Q000601:surgery*; D005547:Foreign Bodies / Q000601:surgery*; D006801:Humans; D008297:Male; D011859:Radiography
Dlitel'noe prebyvanie inorodnogo tela vo vkhode v pishchevod.