Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta remains tortuous , but the mediastinal and hilar contours are stable . Lungs are clear and the pulmonary vascularity is normal . No focal consolidation , pleural effusion , or pneumothorax is present . There are mild degenerative changes of the thoracic spine . Degenerative changes of the glenohumeral joints are also noted , as well as involving the right acromioclavicular joint . A tiny ossific well - corticated density is noted superior to the right AC joint , likely the sequela of prior trauma .
    OUTPUT:
    
No acute cardiopulmonary abnormality .