Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate an interval increase in size of multiple bilateral lung metastases , the largest of which is seen in the right lower lobe measuring 3 .4 cm . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiac silhouette and mediastinal contours remain normal . The pulmonary vasculature is normal .
    OUTPUT:
    
Interval increase in size of multiple bilateral lung metastases , without superimposed pneumonia .