Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes continue to be low . Bilateral loculated pleural effusions are again seen and grossly unchanged . A right basilar opacity may be due to atelectasis , but there is persistent elevation of the right hemidiaphragm . Compared with the prior study , increased interstitial lung markings suggest the presence of mild interstitial pulmonary edema . Patient is post CABG with wondering median sternotomy wires , consistent with known chronic sternal dehiscence .
    OUTPUT:
    
1 . Compared with the prior study , there is worsened interstitial pulmonary edema . 2 . Grossly unchanged bilateral loculated pleural effusions .