Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since 1 day prior , a small right apical pneumothorax is newly appreciated . Extensive subcutaneous emphysema and pneumomediastinum appear essentially unchanged . Lung volumes are overall improved . There is mild left basilar atelectasis and a new , small , left pleural effusion . Heart size and cardiomediastinal silhouettes are unchanged with right hilar prominence .
    OUTPUT:
    
Newly appreciated , small , right apical pneumothorax . Extensive subcutaneous emphysema and pneumomediastinum are essentially unchanged .