A man with an enlarged and tender left calf, chest pain, intermittant hemoptysis, and shortness of breath was referred for a lung scan. Positioning for the ventilation part of the study revealed a high level of radioactivity in the lungs, kidneys, bladder, colon, and salivary glands. The patient denied previous hospital studies and suggested that he may have become contaminated while transporting radioactive materials as an independent truck driver. He was found to be a classic example of Munchausen's syndrome.