Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again , there is moderate increase in interstitial markings bilaterally suggesting moderate pulmonary edema . No definite focal consolidation is seen although would be difficult to exclude at the lung bases . No large pleural effusion or pneumothorax is seen . The cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are unremarkable .
    OUTPUT:
    
Pulmonary edema , difficult to exclude focal consolidation at the lung bases . No pleural effusion .