Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral dual - lead pacemaker sends leads to the right atrium and right ventricle , although the right pacer lead has an unusual configuration . There is an airspace opacity projecting over the lower spine on the lateral radiograph , and a faint nodular opacity in the right upper lobe . The lungs are hyperinflated . There is no pneumothorax . Mild blunting of the costophrenic angles there is most likely due to trace pleural effusions or thickening . The heart and mediastinum are within normal limits .
    OUTPUT:
    
Multiple subtle abnormalities as described above , none of which are diagnostic for pneumonia . Repeat radiographs including bilateral oblique views may be helpful to determine if these abnormalities are persistent , and indicate true pathology .