Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no appreciable change in small left apical and lateral pneumothorax . Faint lucencies along the mediastinum in the left also reflect known pneumothorax . The heart is not enlarged . The mediastinal and hilar contours are otherwise normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No appreciable change in small left pneumothorax .