Answer to last month's radiology case (#40) and images: IED fragment embolism to left posterior cerebral artery.

*Departments of Radiology (60 MDOS); David Grant USAF Medical Center, Travis AFB, CA 94535. † Department of Radiology and Radiological Sciences; Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814-4799 Reprint & Copyright © by Association of Military Surgeons of U.S., 2009. A computed tomography (CT) angiogram of the craniocervical vessels (fig. 1) demonstrated a metallic foreign body in the basilar artery. The next day, the patient’s neurological status deteriorated and a non-contrast head CT (fig. 2) demonstrated migration of the foreign body to the left posterior cerebral artery (PCA) territory.