Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large right tension hydropneumothorax with collapse of the right lung and leftward shift of mediastinal structures . Left lung is grossly clear . Heart size is normal . No left pleural effusion is present . The pulmonary vasculature is normal . There are no acute osseous abnormalities .
    OUTPUT:
    
Large right tension hydropneumothorax with collapse of the left lung .