Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show persistent ill - defined nodular opacities in the right upper lobe and left lung base , better appreciated on chest CT of ___ and thought to represent metastatic disease . No new focal opacity is detected by radiography . There is a small left pleural effusion . No pneumothorax is present . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits and unchanged . The patient is status post right mastectomy .
    OUTPUT:
    
1 . Stable small left pleural effusion from ___ . 2 . Unchanged appearance of ill - defined nodular opacities in the right upper lobe and left lung base consistent with known metastatic disease seen on CT of ___ .