Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left chest wall dual lead pacemaker , with leads projecting over the expected locations of the right atrium and right ventricle . The lungs are normally expanded and grossly clear . Heart size is normal . The thoracic aorta is tortuous . There is no pleural effusion or pneumothorax . There is a mildly displaced , unchanged right seventh lateral rib fracture . Calcified densities projecting over the left scapula and inferior glenohumeral joint are unchanged , likely degenerative or posttraumatic .
    OUTPUT:
    
New left chest wall pacer with leads projecting over the expected locations of the right atrium and right ventricle . No pneumothorax .