Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable , with heart in the upper limits of normal . Linear bilateral mid lung atelectasis is seen . No consolidation , pleural effusion or pneumothorax is seen . No obvious displaced rib fractures are seen .
    OUTPUT:
    
Linear subsegmental atelectasis in both lungs . If there is high concern for rib fracture , dedicated rib series with a radiopaque marker at the site of maximum tenderness can be performed .