Car Accident With Airbag Deployment Trauma Showed Special Pattern in Bone Scan.

A 72-year-old man had rectal adenocarcinoma with partial obstruction with liver and lung metastases. Bone scan showed special pattern with bony destructions to the lateral aspect of the left first to fourth and right first to 10th ribs (in a row in continuous vertical alignment), the costal end of the left second rib, the left sternoclavicular junction, and sternum. Patient recalled a car traffic accident with airbag deployment trauma to the anterior aspect of the chest about 2 months prior. Chest CT confirmed that the bone lesions were all fractures.