Isolated traumatic gallbladder avulsion: a case report.

While the incidence of blunt traumatic gallbladder injury is uncommon, occurring in only 2% of patients who undergo laparotomy, the presence of an isolated injury to the gallbladder is very rare since other associated intraabdominal injuries are also usually found. However, we present a case of isolated gallbladder avulsion involving an unrestrained driver in a high-speed motor vehicle collision that was suggested based on imaging findings and corroborated at surgery. Since gallbladder injury can be a difficult diagnosis to make both clinically and radiologically, early detection with computed tomography (CT) is essential in decreasing patient morbidity and mortality. We discuss the different types of gallbladder injuries as well as the CT imaging findings associated with traumatic gallbladder injury, many of which are illustrated with our case. The importance of delayed postcontrast imaging in distinguishing traumatic from nontraumatic gallbladder findings is also emphasized.