Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is evidence seen on frontal projection of an old , healed right humeral fracture . Otherwise the visualized bony structures are unremarkable . The cardiomediastinal contours are stable in appearance . The bilateral hila are normal . There is interval progressive resolution of the left lower lobe opacity which was previously seen . However , there still remains some residual opacification best appreciated on lateral projection . Given timing of this study as compared to prior radiograph , this may simply represent residual fibrous change of lung parenchyma following left lower lobe pneumonia . Otherwise there are no new focal lung consolidations . There is no evidence of pulmonary vascular congestion . There are no pneumothoraces or effusions .
    OUTPUT:
    
Interval progressive resolution of left lower lobe consolidation . Residual opacification in this area may simply represent resultant fibrous change of lung parenchyma following pneumonia . Otherwise stable chest x-ray .