Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is a stable position of a metallic foreign body which is lodged in the left anterior chest wall . There is a small left pleural effusion with faint left basilar opacity which could represent atelectasis or pneumonia . The right lung is clear . The heart and mediastinal contours are normal . There is no pneumothorax . No acute osseous abnormalities .
    OUTPUT:
    
1 . Small left pleural effusion with faint opacity at the left lung base which could represent pneumonia or atelectasis . 2 . Stable position of metallic foreign body within the left anterior chest wall .