Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no significant change compared to prior examination . Cardiomediastinal silhouette and hilar contours are unchanged with redemonstration of vague paramediastinal linear opacities suggestive of radiation fibrosis . The inferior lung fields are increased in density from overlapping breast prostheses . The lungs are clear without focal consolidation . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No significant change compared to prior exam . No pneumothorax .