Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . No prior . The lungs are clear . Costophrenic angles are sharp . Cardiomediastinal silhouette is within normal limits . There is widening of the right acromioclavicular joint . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Widening of the right AC joint .