Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes have decreased with crowding of the bronchovascular markings . Central vascular congestion likely reflects volume overload . Bibasilar opacities , slightly asymmetric in left lower lobe can be asymmetric atelectasis or left lower lobe early consolidation . No substantial effusions . No pneumothorax .
    OUTPUT:
    
Mild pulmonary congestion . Bibasilar opacities , slightly worse in left lower lobe can be asymmetric atelectasis with low lung volumes or early consolidation .