Preschooler with a history of a foreign body ingestion Pediatric Imaging Gastrointestinal January 7, 2026November 26, 2025 AXR AP (left) shows a round radiopaque object in the region of the pylorus of the stomach that has a lucent halo around it. Zoomed up image of the object (right) better shows the lucent halo. The diagnosis was gastrointestinal foreign body in the form of a button battery. Related Published January 7, 2026November 26, 2025
