Trauma remains the leading cause of mortality in the United States for those <45 years of age, and it is the fourth leading cause of death overall. Polytrauma is defined as an injury to at least two body parts, including the head, neck, chest, abdomen, pelvis, or an extremity, with any one or a combination of these injuries being potentially fatal. This document covers imaging of major blunt trauma or polytrauma resulting in multiple organ injuries. Burn injuries, and injuries to pediatric pa…