Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate an ill - defined opacity projecting over the ___ lateral posterior left rib , not seen on lateral views . For this , additional imaging with chest CT is recommended . The lungs are otherwise well expanded and clear without focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal and hilar contours are unremarkable .
    OUTPUT:
    
1 . Ill defined opacity projecting over the ___ lateral posterior left rib not seen on lateral views for which additional imaging with CT is recommended . 2 . No findings to suggest lymphadenopathy . These findings were communicated to the ordering physician via ___ critical findings website at the time findings were reviewed .