Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low leading to crowding of the bronchovascular structures the making it impossible to exclude mild pulmonary edema . Portions of the right hemidiaphragm and right heart border are obscured by a and adjacent airspace opacity . Streaky bibasilar atelectasis is present . The upper lung zones are clear . Bilateral pleural effusions are small . There is no pneumothorax . The patient is status post median sternotomy . Mild cardiomegaly is noted , exaggerated by technique and poor inspiration .
    OUTPUT:
    
New airspace opacity overlying the right heart border is compatible with pneumonia . Mild interstitial pulmonary edema and small bilateral pleural effusions suggest concurrent cardiac decompensation . Bibasilar atelectasis . Mild cardiomegaly .