Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Multifocal bilateral pulmonary nodules and masses are seen , significantly enlarged since ___ . Given differences in technique there is no clear difference since exam from earlier the same month . Given the extent of disease , it would be difficult to exclude a superimposed infection . The cardiomediastinal silhouette is grossly unchanged overall less well evaluated on the current exam due to silhouetting of the left . No acute osseous abnormality identified .
    OUTPUT:
    
Multifocal metastatic disease in the lungs which limits evaluation for superimposed infectious process in the lungs .