Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable view of the chest . The tiny left apical pneumothorax is not significantly changed . Lungs are clear otherwise . Left - sided chest tube is unchanged in position , ending in the lower hemithorax . Heart size is top normal . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
Stable tiny left apical pneumothorax .