Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited by lordotic positioning . Right - sided pacer device is noted with leads in unchanged positions , terminating in the right atrium and right ventricle . Heart size remains mildly enlarged with a left ventricular predominance . The mediastinal and hilar contours are unchanged , and the pulmonary vasculature is not engorged . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities detected . Marked narrowing of the right acromiohumeral interval is compatible with underlying rotator cuff disease .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Pacing leads remain intact and in unchanged positions .