Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are decreased . Diffuse fibrotic changes are again seen bilaterally , most pronounced at the lung bases . No pneumothorax or pleural effusion is clearly visualized . No convincing evidence for pulmonary edema . The heart is moderately enlarged .
    OUTPUT:
    
Low lung volumes with diffuse fibrotic changes in the lungs , similar compared to the previous exam .