Accidental ingestion of foreign bodies constitutes an emergency for pediatric care services especially since the group most frequently affected consists of children between 6 months and 3 years of age. Ingestion of button cell batteries has high risks for severe early complications such as esophageal perforations and me-diastinitis, as well as the long term risk of stenosis. Early identification and extraction are the most important management strategies. A double contour on a frontal cervical, thoracic, or abdominal x-ray is characteristic, but this same radiological sign has been reported for other foreign bodies. We present two cases with these characteristics.