Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a left pectoral pacemaker with leads terminating in the right atrium and right ventricle . There appears to be a fracture of the inferior most sternotomy wire without priors for comparison . There is no displacement of the sternotomy wires . There is subtle opacification at the left base without priors for comparison , which likely represents an early developing left lower lobe pneumonia . The lungs are otherwise clear . The pulmonary vasculature is normal . There is postoperative enlargement of the cardiomediastinal silhouette . There are no pleural effusions . There is no pneumothorax .
    OUTPUT:
    
1 . Early developing right lower lobe pneumonia . 2 . Fracture of the inferior - most sternotomy wire of unknown chronicity .