Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates at the junction of the SVC and right atrium . Heart size is normal . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . No subdiaphragmatic free air is identified . Degenerative changes are seen involving the right glenohumeral and both acromioclavicular joints .
    OUTPUT:
    
Right internal jugular central venous catheter tip at the junction of the SVC and right atrium . No acute cardiopulmonary abnormality or subdiaphragmatic free air .