Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On todays exam , the lungs appear clear . Cardiac silhouette is normal in size . A additional well defined density projecting medial right lower hemithorax is compatible with a Morgani hernia as seen on the prior CTs . No evidence of pneumonia . No pleural effusion . No pneumothorax . Rib fractures of be posterior seventh , eighth and right ribs are new since prior setting , but subacute in appearance .
    OUTPUT:
    
No evidence of pneumonia or pulmonary edema , .