Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is top normal . Mediastinal contours are unremarkable . There is crowding of the bronchovascular structures . Patchy bibasilar airspace opacities likely reflect atelectasis . Blunting of the right costophrenic angle is compatible with a small right pleural effusion . No pneumothorax is identified . No free air is identified under the diaphragms .
    OUTPUT:
    
1 . No free air under the diaphragms . 2 . Bibasilar atelectasis and small right pleural effusion .