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A 17-year-old patient presented, after a motor vehicle collision, with right hip pain and unusual radiographs of the chest and pelvis. Multiple radiopacities obscured detail. These partly obscured and distracted attention from a right acetabular fracture. The etiology was persistent perflubron 9 years after partial liquid ventilation for acute respiratory distress syndrome. Persistence of perflubron beyond 138 days has not been previously reported. We review the imaging appearance of perflubron and the mechanism likely related to its distribution and persistence in this case, and emphasize the importance of obtaining clinical history and avoiding distraction when faced with unusual radiographic findings. [ABSTRACT FROM AUTHOR]