Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is stable . There are patchy opacities throughout the lungs , particularly in the perihilar and bibasilar regions , suggestive of pulmonary edema . There is blunting of the left costophrenic angle , suggestive of a small effusion . A right - sided subclavian dual - lumen catheter terminates in the lower superior vena cava and right atrium . Sternotomy wires are in place . Multiple surgical clips project over the mediastinum and right upper quadrant . No acute bony abnormality is identified .
    OUTPUT:
    
Patchy pulmonary opacities suggestive of pulmonary edema . However , underlying infection can not be excluded based on this radiographic appearance .