Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rightward rotated limiting evaluation . Lung volumes are low . Heart size is exaggerated by low lung volumes and AP technique but is likely mildly enlarged . There is generalized opacity of the left lung which may be positional . More focal opacities at the lung base could reflect atelectasis . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Opacities at the left base are likely atelectasis although pneumonia or atelectasis is possible in the right clinical setting . 2 . Mild cardiomegaly .