Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are fully expanded and clear , and pneumothorax can no longer be identified . No interval change in small left pleural effusion . Heart size , mediastinal contour and hila are normal . No acute displaced rib fracture is seen on radiograph today .
    OUTPUT:
    
1 . Left apical pneumothorax is no longer identified . 2 . Stable small left pleural effusion .