Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right apical pneumothorax unchanged since the prior . Worsening multifocal opacification of the left lung , superimposed on the known left upper lobe and left hilar masses . Moderate left pleural effusion is also unchanged with loculated component in the apex . New possible air - fluid level in the left upper lobe , at the site of prior chest tube , can be small loculated hydropneumothorax . The reticular opacities opacities in the right lower lobe are unchanged .
    OUTPUT:
    
Stable , small right apical pneumothorax . New possible air - fluid level in the left upper lobe , possibly a small loculated hydropneumothorax . Increasing opacification of the left lung on superimposed left lung malignancy , which may be due to multifocal infection , asymmetric edema or hemorrhage .