Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . There are diffuse bilateral interstitial opacities in the lungs , most consistent in appearance with pulmonary edema or possibly an atypical infection . Cardiomediastinal silhouette is unremarkable . There is no pneumothorax or pleural effusion . There is a fracture of the lateral arch of the right third rib . Internal fixation hardware is again seen in the C - spine .
    OUTPUT:
    
1 . Fracture of the lateral arch of the right third rib . 2 . Mild interstitial pulmonary edema .