Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Subsegmental atelectasis is noted in both lung bases . Persistent focal opacity is noted within the right lower lobe , slightly improved from the previous radiograph , and compatible with pneumonia . No new areas of focal consolidation are present . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is present .
    OUTPUT:
    
Slight interval improvement in right lower lobe focal opacity concerning for pneumonia . No new areas of focal consolidation present . Continued followup radiographs after treatment are recommended to ensure resolution of this finding .