Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large right - sided pneumothorax is present with atelectasis of the right lung , and leftward shift of mediastinal structures compatible with tension . Additionally , a trace amount of fluid is noted within the right pleural space . Cardiac , mediastinal and hilar contours are otherwise unremarkable . Left lung demonstrates minimal streaky opacity in the left lung base likely reflecting atelectasis . No acute osseous abnormality is seen .
    OUTPUT:
    
Large right - sided hydropneumothorax with leftward shift of mediastinal structures compatible with tension . Findings called by phone to Dr . ___ at 4 : 18 p .m . on ___ .