Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Nearly completely re-expanded left lower lobe , with mild residual basilar opacity , likely atelectasis . Re-expansion of the left hemothorax with normal position of midline structures . Mild right infrahilar opacity , more apparent , atelectasis versus infiltrate . Gastric distention . Normal heart size , pulmonary vascularity .
    OUTPUT:
    
Near completely re-expanded left lower lobe . . Mild right infrahilar atelectasis or infiltrate .