Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there has been interval worsening of a vague opacity in the right mid lung zone . The left lung is clear . Costophrenic sulci are blunted bilaterally , likely related to pleural thickening . There is no pneumothorax . The cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Increased density of right mid lung opacity , which is concerning for pneumonia . These findings were discussed with Dr . ___ by Dr . ___ via telephone on ___ at 12 : 13 p .m . , at time of discovery .