Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . There has been interval placement of a dual - lead left pectorally implanted pacer with leads terminating in the expected location of the right atrium and right ventricle . There is mild prominence of the central pulmonary vasculature , compatible with congestion , without frank edema . Patchy opacities in the right upper and lower lung fields may reflect areas of pneumonia . Left basilar atelectasis is noted . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Mild central pulmonary vascular congestion without frank edema . Patchy opacities in the right upper and lower lung field may reflect areas of infection .