Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low with basilar opacities , most likely atelectatic . No effusion or pneumothorax . Heart size is difficult to assess . Mediastinal contour is normal . Bony structures are intact . No free air below the right hemidiaphragm . Clips in the upper abdomen are again noted .
    OUTPUT:
    
Low lung volumes with basilar atelectasis . No convincing signs of pneumonia .