Water chestnut of the esophagus.
Tsang
T K
TK
D000368:Aged; D004947:Esophagus / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D005502:Food; D005547:Foreign Bodies / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D011859:Radiography