Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is unchanged . There aorta remains tortuous . There is mild pulmonary vascular congestion , similar when compared to the prior exam . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax . No acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion .