Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflated lungs with flattening of the diaphragm . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . The median sternotomy wires are intact and well aligned . Small bilateral pleural effusions persist . No pneumothorax .
    OUTPUT:
    
1 . Median sternotomy wires are intact and well aligned . 2 . Mild hyperinflation of the lungs . 3 . Persistence of small bilateral pleural effusions .