Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac and mediastinal silhouettes are stable with the cardiac silhouette mild to moderately enlarged . Subtle right upper lobe scarring is likely stable . Hilar contours are stable . There may be very subtle increase in interstitial markings bilaterally which could suggest a component of very minimal vascular congestion , but is felt to more likely be artifactual and is similar in appearance compared to prior chest radiograph from ___ . No large pleural effusion is seen . No definite new focal consolidation . No evidence of pneumothorax .
    OUTPUT:
    
No significant interval change as compared with ___ , interstitial markings may be minimally more prominent as compared to ___ , likely relating to differences in technique versus a very minimal chronic pulmonary vascular congestion .