Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacer device is noted with leads terminating the right atrium and right ventricle . Mild cardiomegaly is re - demonstrated . Atherosclerotic calcifications are noted at the aortic knob . Mediastinal and hilar contours are unchanged . Mild pulmonary vascular engorgement is similar compared to the prior study . Patchy atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild cardiomegaly with mild pulmonary vascular congestion .