Foreign bodies are frequently encountered in medical imaging and can range from intentionally placed objects, such as medical devices and surgical hardware, to debris from accidents and injuries and a wide variety of swallowed items. Many foreign bodies are well visualized with radiography, ultrasonography, or another imaging modality1 and, once detected, are often easily treated or even resolve spontaneously. Occasionally, however, foreign bodies go undetected and can have serious consequences.
展开▼