Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Superimposed on chronic volume loss , parenchymal scarring , and pleural thickening in the left hemithorax , there is a persistent superimposed opacification in the left lung , which has worsened somewhat between over two days including increased volume loss . Findings in the right lung appear more chronic .
    OUTPUT:
    
Worsening volume loss and opacification of the left lung suggesting pneumonia superimposed on chronic findings .