Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A metallic esophageal stent is again noted in unchanged positions . Blunting of the right CP angle is unchanged and may reflect small effusion and / or pleural thickening . Dual lead pacer is in unchanged position with leads extending to the region the right atrium and right ventricle . Midline sternotomy wires and mediastinal clips again noted . No focal consolidation concerning for pneumonia . There is mild hilar congestion with mild interstitial pulmonary edema . Cardiomediastinal silhouette is unchanged . A Coronary stent is in place overlying the left heart border . Imaged bony structures appear intact . Right AC joint arthropathy noted . No free air below the right hemidiaphragm seen .
    OUTPUT:
    
Mild interstitial pulmonary edema . Stable tiny right pleural effusion versus pleural thickening .