Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Lungs are clear . There are no focal consolidations or pleural effusions . Mild elevation of the right hemidiaphragm is redemonstrated . A sclerotic focus on the left sixth anterior rib is again seen and is unchanged , previously described as a bone island on CT torso of ___ .
    OUTPUT:
    
No radiographic evidence of an acute cardiopulmonary process .