Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The lungs are well expanded . There is irregular opacity at the right apex , likely the sequela of prior infection and unchanged since prior examination . There is no focal consolidation , pleural effusion or pneumothorax . No large mass identified .
    OUTPUT:
    
Redemonstration of irregular opacity at the right apex , likely a sequela of prior infection / scarring . No acute cardiopulmonary process .