Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There are innumerable rounded opacities of different sizes throughout both lungs which are new from prior study . Heart is normal in size . There is calcification of the aortic knob . No significant pleural effusions . No pneumothorax .
    OUTPUT:
    
Multiple masses throughout the lungs bilaterally consistent with metastases .