Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views were obtained of the chest . The lungs are low in volume with interval increase in mild vascular congestion . Due to poor penetration likely due to body habitus , assessment for edema is somewhat limited . The heart remains moderately enlarged with perhaps trace pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Limited examination due to poor penetration with mild vascular congestion .