Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Midline sternotomy wires and mediastinal clips are again noted . Innumerable round nodules noted within both lungs compatible with metastatic disease . Retrocardiac opacity compatible with known hiatal hernia . Linear density in the left lower lobe likely atelectasis . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Innumerable pulmonary nodules concerning for metastatic disease . Please correlate clinically . CT may be performed to further assess .