Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of costophrenic angle posteriorly without focal consolidation , pneumothorax , or pulmonary edema . The heart size and mediastinal contours are normal . Again seen are old fractures at the ___ right posterior ribs and appear unchanged . No additional bony abnormality detected .
    OUTPUT:
    
Blunting of costophrenic angle posteriorly could reflect pleural thickening or small pleural effusion . No pneumonia . Results were conveyed via telephone to ___ , nurse practitioner , by Dr . ___ on ___ at 10 : 20 a .m . within five minutes of results .