Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding . Increased reticulonodular interstitial opacities bilaterally likely represent mild to moderate pulmonary edema . Retrocardiac opacification is similar to multiple prior studies and likely represents a combination of atelectasis and volume overload . There is no pleural effusion , consolidation , or pneumothorax . Mild cardiomegaly is stable . The cardiomediastinal silhouette is unchanged . 6 intact sternotomy wires unchanged . The osseous structures and upper abdomen are unremarkable .
    OUTPUT:
    
Low lung volumes cause bronchovascular crowding , allowing for this there is likely mild to moderate pulmonary edema without focal consolidation .