Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes limit assessment of the lung bases . Patchy ill - defined opacities within the lung bases , more so on the left , may reflect areas of aspiration , infection , or possibly atelectasis . The heart size is normal . The aorta appears tortuous . There is no pulmonary edema , pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes limit assessment of the lung bases . Bibasilar airspace opacities may reflect aspiration , infection , or possibly atelectasis . Consider repeat PA and lateral views with improved inspiratory effort for further assessment of the lung bases .