Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Both lungs are well expanded . Very ill - defined opacity is seen on the lateral view only in the posteroinferior lung overlying the lower thoracic spine which is concerning for pneumonia . Otherwise , lungs are clear . Heart size is top normal . Mediastinal and hilar contours are normal . There are no interstitial abnormalities . There is no pleural effusion .
    OUTPUT:
    
Very faint and ill - defined opacity evident only on the lateral view in the posterior - inferior lung overlying the lower thoracic spine is concerning for pneumonia . These findings were discussed with Dr . ___ on ___ at 4 :31 p .m .