Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mildly hypoinflated lungs with persistent bilateral calcified pleural plaques . These plaques obscure visualization of the lung parenchyma particularly at the bases . No new focal opacity . Right middle lobe opacity is stable from previous examinations . Bibasilar fibrotic changes are noted . No large pleural effusion or pneumothorax . Mildly increased heart size . Tortuous aorta noted . Mediastinal contour and hila are otherwise unremarkable .
    OUTPUT:
    
1 . Stable chest with mildly increased heart size . 2 . Chronic fibrotic changes and calcified pleural plaques compatible with asbestosis exposure . Heavy calcified pleural plaques limits evaluation for small lesions or abnormalities . 3 . Bibasilar atelectasis and fibrotic changes .