Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The heart is normal in size . Mediastinal contour is unremarkable . The lungs are clear . No pleural effusion or pneumothorax is seen . Right AC joint arthropathy is noted . Bony structures otherwise unremarkable .
    OUTPUT:
    
No acute findings in the chest . Incidental note of right AC joint arthropathy .