Handheld Magnetometer-Assisted Localization and Removal of a Foreign Body From the Chest Wall.

Foreign bodies fully embedded in soft tissues present a unique challenge to surgeons attempting excision. Small fragments can be nonpalpable, and many prove difficult to visualize intra-operatively by means of classic radiologic techniques. A 35-year-old active duty soldier presented requesting excision of ballistic fragment embedded in his chest wall that had previously failed a previous attempt at removal. The metallic foreign body was successfully localized intra-operatively using a handheld magnetometer probe and removed without complication. This case demonstrates the utility and cost-effectiveness of the handheld magnetometry for intra-operative localization of metallic foreign bodies. Metallic foreign bodies may be localized intra-operatively using inexpensive and reusable equipment that does not require radiation or bulky radiographic imaging equipment.