Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The entire right hemithorax is opacified , largely due to pleural effusion , but there is also a component of underlying pulmonary edema and atelectasis . This is a dramatic change compared to the prior radiograph performed yesterday evening , which suggests re-expansion pulmonary edema . The left lung is essentially clear . There is no pneumothorax . Left heart border is unremarkable . No acute osseous abnormalities . The VP shunt is unchanged in position .
    OUTPUT:
    
Significant worsening opacification of the entire right hemithorax , suggesting re-expansion pulmonary edema in the setting of recent thoracentesis .