Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart appears mildly enlarged , even accounting for technique . Increased opacities at the right lung base could reflect atelectasis , however in the appropriate clinical setting an early infectious process or aspiration can not be entirely excluded . There is mild pulmonary vascular congestion . No pneumothorax is identified .
    OUTPUT:
    
Mild cardiomegaly , . Mild pulmonary vascular congestion . Increased density at the right lung base could reflect atelectasis , however in the appropriate clinical setting an early infectious process or aspiration can not be entirely excluded .