Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small to moderate left apicolateral pneumothorax with a pleural line now projecting at approximately level of the fourth posterior rib . Left apical subpleural blebs are present , and note is also made of nonspecific scarring at the right apex . The lungs are otherwise clear . No focal consolidation , edema , or effusion . Right apical pleural thickening or scarring is unchanged and mild . The heart is normal in size . The mediastinum is not widened .
    OUTPUT:
    
Small to moderate left apicolateral pneumothorax without evidence of tension .