Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are obtained . There is some mild atelectasis at the left lung base , unchanged since the prior radiographs . There is no focal consolidation , pulmonary edema or pleural effusion . Mild degenerative changes of the thoracic spine with multilevel bridging osteophytes are again seen . Pacemaker leads are unchanged in position , terminating in the right atrial appendage and right ventricle .
    OUTPUT:
    
No acute cardiopulmonary disease .