Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bullet fragments project over the left humeral head . Heart size is normal . An opacity in the left lung may represent atelectasis and mild pulmonary vascular congestion . There is no osseous abnormality . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Mild pulmonary vascular congestion . Bullet fragments are re - demonstrated .