Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs show obscuration of the right heart border , which more likely represents atelectasis . However , there are very subtle opacities overlying the heart on the lateral view . There is no definite focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Subtle opacities described above may simply be atelectasis , but can be better charachterized with oblique views .