Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are numerous round opacities scattered throughout bilateral lungs , consistent with pulmonary metastasis , larger or new compared to ___ . The largest lesion measures 2 .9 cm in the right perihilar region . There is no consolidation , pleural effusion or pneumothorax . Cardiomediastinal and hilar silhouettes are normal size .
    OUTPUT:
    
There are numerous round opacities scattered throughout bilateral lungs , consistent with pulmonary metastasis , larger or new compared to ___ .