Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation is identified . There is increased interstitial markings which may be from mild vascular congestion or chronic underlying interstitial process . The heart is mildly enlarged . Calcifications of the aortic arch is noted . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . No focal consolidation . 2 . Prominent interstitial markings which could represent vascular congestion or chronic underlying interstitial process .