Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Thin left - sided dual - chamber pacemaker device is again noted with leads terminating in the right atrium and ventricle . The aorta is mildly tortuous , otherwise the hilar and mediastinal contours are unremarkable . Note is made of mild pulmonary vascular congestion . No focal consolidations concerning for pneumonia are identified . There is no pleural effusion or pneumothorax . Mild to moderate degenerative changes are seen involving both acromioclavicular joints .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .