Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is hyperinflation of bilateral lungs with flattening of both hemidiaphragms , both of which are stable since ___ . No evidence of suspicious masses , focal consolidations , pleural effusions , or pneumothorax . The heart and mediastinum are within normal limits . No osseous abnormalities .
    OUTPUT:
    
No suspicious lung masses are seen on this radiograph .