Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter remains in the low SVC . Right infrahilar opacity is essentially unchanged . Other smaller multifocal opacities have worsened in the left mid and upper lung and periphery of the right base . Heart size is normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Opacities have worsened in the left mid and upper lung . The largest opacity in the right infrahilar region is unchanged from ___ but improved since ___ .