title: Coin ingestion: unusual appearance of the penny in a child.
abstract: The United States of America changed the composition of the penny in 1982. It is now a copper-plated, zinc-based coin. Erosions of the edge of this new coin were observed when it was impacted in the esophagus of a 13-month-old child.
mesh_terms: D003300:Copper; D004945:Esophagoscopy; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D006851:Hydrochloric Acid; D007223:Infant; D008670:Metals; D011859:Radiography; D015032:Zinc
chemical_list: D008670:Metals; D003300:Copper; D015032:Zinc; D006851:Hydrochloric Acid