Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual - lead pacemaker implanted in the left chest wall has two leads terminating in the expected location of the right atrium and right ventricle respectively . Mild hyperexpansion is unchanged . A small right pleural effusion is new . There are no focal opacities to suggest pneumonia . Mild cardiomegaly is stable . The hilar contours and pulmonary vasculature appear normal . The mediastinal silhouette is unchanged . Tortuosity of the thoracic aorta is re-demonstrated .
    OUTPUT:
    
1 . Small right pleural effusion is new ; however , there is no evidence of pneumonia and no other significant appreciable change . 2 . Mild cardiomegaly is unchanged . The above results were communicated via telephone by Dr . ___ to Dr . ___ ___ at 2 :45 p .m . as requested .