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Suspicion for battery ingestion should be maintained for any round radiopaque foreign body. Presence of the classic "double ring" sign on plain film should prompt emergent operative removal, although it is not pathognomonic., Competing Interests: None of the authors have published or submitted any related papers from the same study or have any conflicts of interest or financial disclosures to report., (© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)