Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Additional views were requested to evaluate right upper mediastinum linear metallic densities . Magnified examination reveals that these are four surgical clips . No evidence of shrapnel . Remainder of examination is unchanged with chain sutures related to right upper lobe resection . Prominence of the interstitium more apparent on the current study due to differences in technique and may reflect chronic underlying lung disease . No focal opacification concerning for pneumonia present . There is mild blunting of the bilateral costophrenic angles , right greater than left , possibly reflecting trace effusions versus scarring . Stable cardiomegaly .
    OUTPUT:
    
Metallic densities projecting over right upper mediastinum , appearance most consistent with clips . No foreign bodies concerning for gunshot wound tract now identified . Stable cardiomegaly .