Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates stable cardiomediastinal silhouette . When compared to prior study , multiple rib fractures are again seen . Previously seen opacification of the left lung base appears to project over tenth left lateral rib and which does not appear localized within the lung parenchyma . A right chest port is identified terminating in the mid SVC . Re - demonstration of right prior clavicular fracture .
    OUTPUT:
    
Previously seen left lung base opacity projects over the left tenth rib laterally and which does not appear to be localized within lung parenchyma . Lungs are otherwise clear .