Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . In the right lower perihilar region ill - defined opacities could represent atelectasis or pneumonia in the appropriate clinical setting . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Right perihilar opacities , could represent atelectasis or pneumonia in the appropriate clinical setting