Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate interval improvement in right lower lobe airspace opacity . There is no significant effusion . A granuloma is unchanged in appearance in the right upper quadrant . The heart size is mildly enlarged . The mediastinal contours are normal . There has been prior median sternotomy , with surgical clips seen in the mediastinum . Retrosternal thickening is unchanged from ___ . There is no pneumothorax . The pulmonary vasculature is normal .
    OUTPUT:
    
Interval resolution of right lower lobe pneumonia . Findings were discussed with Dr . ___ at 9 : 20 a .m . by phone .