Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent diffuse pulmonary fibrosis , better assessed on prior CT chest from ___ . No focal opacity is identified . The cardiac silhouette remains mildly enlarged . There is no pleural effusion or pneumothorax . Included upper abdomen is unremarkable .
    OUTPUT:
    
1 . Severe diffuse pulmonary fibrosis , better assessed on prior CT chest from ___ . No focal consolidation . 2 . Mild cardiomegaly .