Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Increased opacity at the right lung base and perihilar region may be secondary to aspiration / infection . There is no pleural effusion , or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No evidence of fractures . Increased opacity at the right lung base and perihilar region , may be secondary to aspiration / infection .