Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are reduced . The heart size is mildly enlarged . Mediastinal contours are unremarkable . There is bronchovascular crowding , and probable mild pulmonary vascular congestion . Streaky patchy opacities in the lung bases could reflect atelectasis . There may be minimal blunting of the right costophrenic angle , suggestive of a trace effusion . No pneumothorax is identified .
    OUTPUT:
    
Low lung volumes with probable mild pulmonary vascular congestion . Patchy bibasilar airspace opacities could reflect atelectasis . Likely small right pleural effusion .