Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . Mediastinal lymphadenopathy is better seen in prior CT . Diffuse alveolar opacities have increased more so in the left lower lobe . There is no pneumothorax or pleural effusion . Patient is status post CABG . Sternal wires are aligned .
    OUTPUT:
    
Patient has known fibrotic interstitial lung disease , with acute diffuse ground - glass opacities , differential diagnosis includes infection , edema or acute exacerbation of interstitial lung disease