August 2007

What is the likely cause of this radiographic abnormality?

Sari H. Green, Resident, Surgical Education, Los Angeles County Harbor UCLA Medical Center, Torrance, CA; Kenneth S. Waxman, Director, Department of Surgical Education, Cottage Hospital, Santa Barbara, CA; Peter L. Morris, Director of Pathology, Cottage Hospital, Santa Barbara, CA; Benjamin D. Shadle, Resident, Surgical Education, Cottage Hospital, Santa Barbara, CA

Elisabeth Garwood, PACCTR Visiting Fellow,