Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle interstitial markings in subpleural area of lower lung that appeared between ___ and ___ are unchanged since ___ . They are not seen on the lateral view . There is no new lung consolidation . Mediastinal and cardiac contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Interstitial lung markings are subtle in lower lung and subpleural area , unchanged since ___ but new since ___ . A high - resolution CT is suggested to rule out interstitial lung disease .