Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is tortuous . Mediastinal contours are unchanged . Right hilar mass compatible with non-small cell lung cancer is again demonstrated . Worsening opacification of the right lower lobe is concerning for postobstructive pneumonia with blunting of the right costophrenic angle compatible with a small pleural effusion , new from the prior study . No pulmonary vascular congestion is demonstrated . Minimal blunting of the left costophrenic angle also is suggestive of trace fluid . Streaky left basilar opacity is compatible with atelectasis . No pneumothorax . No acute osseous abnormalities are visualized . Cholecystectomy clips are again seen in the right upper quadrant of the abdomen .
    OUTPUT:
    
Persistent right hilar mass compatible with known malignancy with worsening right lower lobe opacification concerning for postobstructive pneumonia . Small bilateral pleural effusions . Left basilar atelectasis .