Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Apices not included on this study . Heart size is enlarged , which may be due to patient positioning . Mild bibasilar opacities , possibly representing aspiration . There is no pneumothorax or large pleural effusion . There is no acute osseous abnormality .
    OUTPUT:
    
Enlarged cardiac silhouette may be secondary to positioning . Bibasilar opacities could be secondary atelectasis although aspiration pneumonia is possible .