Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is of normal size . Slight rightward shift of the mediastinum is similar to prior , and likely due to thoracolumbar scoliosis . Posterior costophrenic angles are minimally blunting and trace pleural effusions are not excluded . Right base linear opacity is compatible with scarring . No focal consolidation or pneumothorax . Pulmonary vascular markings are normal . No radiopaque foreign body .
    OUTPUT:
    
Right lung base linear scarring with possible trace bilateral pleural effusions .