Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well - aerated lungs which are clear . There is no pleural effusion or pneumothorax . The chest is hyperinflated . Moderate degenerative changes affect each acromioclavicular joint .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .