Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs . Median sternotomy wires are intact , and the patient is status post CABG . Moderate cardiomegaly and mild interstitial opacities are unchanged from ___ . There are small bilateral pleural effusions , not present on most recent prior , and left basilar opacification , possibly reflecting atelectasis . There is no pneumothorax .
    OUTPUT:
    
Mild interstitial pulmonary edema , small bilateral pleural effusions . Left basilar opacity may reflect atelectasis , though infection can not be completely excluded .