Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Swan - Ganz catheter is in proximal right pulmonary artery . NG tube enters the proximal stomach and is out of view . ET tube is 6 .5 cm at level of carina and is in appropriate position . Improved aeration in the upper lobes bilaterally with increase in density of right lower lobe opacity with new central lucency worrisome for cavitation . No change in left lower lobe opacity and small bilateral pleural effusions . Heart size is top normal with normal mediastinal contour .
    OUTPUT:
    
Stable left lower lobe pneumonia with interval increase in density of right lower lobe pneumonia with new area of cavitation .