Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top - normal in size but unchanged from the prior exam in ___ . Bibasilar opacities are demonstrated that likely reflect atelectasis . There is no large effusion or pneumothorax . The left fourth and fifth ribs anteriorly are slightly irregular . Clips project over the right upper quadrant .
    OUTPUT:
    
Bibasilar opacities are most consistent with atelectasis . No definite rib fractures are identified , however the left fourth and fifth ribs anteriorly are slightly irregular . Consider marking the areas of focal tenderness and obtaining rib views for further evaluation . A CT could also be used for further evaluation .