Disk battery ingestion. Elevated urine mercury levels and enema removal of battery fragments

Button batteries in the ear, nose and upper aerodigestive tract

“…Both these children had no systemic symptoms of mercury toxicity [16,17]. Nevertheless, they were both treated with oral chelators.…”

Foreign Body Inhalation: A Case of Mistaken Identity?

“…The reported complications of button battery ingestion include mercury poisoning, burns, esophageal stricture, perforation, tracheoesophageal fistula, aortoesophageal fistula, and hemorrhage (2,3,(5)(6)(7)(8)(9)(10)(11)(12)(13)(14). The likelihood of these complications varies with the site, thus the need for intervention to remove a button battery depends upon its site and the symptoms.…”

Foreign body ingestion: children like to put objects in their mouth

“…There have been reports of mercury poisoning following disk battery ingestion. [28,29] Batteries in the esophagus should be removed urgently in order to prevent fatal complication. One hour of contact time may result in mucosal injury and all layers of the esophagus may be involved within 4 hours.…”