Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large cavitating mass in the right upper lobe which is invading the mediastinum and compromising the SVC and right pulmonary artery . Note is made of extensive systemic collaterals . The cardiomediastinal and hilar contours are otherwise within normal limits . Emphysematous changes are seen in the left lung . There is a small right sided pleural effusion .
    OUTPUT:
    
1 . Large cavitating mass in the right upper lobe which conforms to findings on subsequent chest CT examination . 2 . Small right sided pleural effusion .