Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild vascular congestion and mild cardiomegaly . The left atrium is more enlarged than prior study . No pleural effusion or pneumothorax is seen . The aorta is tortuous .
    OUTPUT:
    
1 . Progressively enlarged left atrium . 2 . Mild vascular congestion and mild cardiomegaly .