Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is again noted . Biapical pleural thickening and parenchymal scarring is unchanged . There are increased bilateral interstitial markings , some of which may be due to paramediastinal fibrosis consistent with prior radiotherapy , as described on the prior CT chest . No focal consolidation or large pleural effusions . No evidence of pneumothorax .
    OUTPUT:
    
Increased interstitial markings new from prior which could be due to interstitial edema although atypical infection is also possible . No focal consolidation identified .