Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright AP and lateral views of the chest provided . Midline sternotomy wires and mediastinal clips are again noted . Lung volumes are low . Bilateral lower lung opacities likely reflect the presence of atelectasis and pleural effusions , likely small to moderate in size . Mild pulmonary edema persists . A band of atelectasis in the left mid lung is noted . No pneumothorax is present . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Cardiomegaly , mild pulmonary edema , bilateral pleural effusions with lower lobe atelectasis .