Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right IJ ends in the region of the cavoatrial junction , unchanged . The right lower lung opacity has significantly improved , with minimal residual . Mild cardiomegaly is overall unchanged . Slight blunting of the left costophrenic angle and retrocardiac opacity with blunting of the left hemidiaphragm are overall unchanged and may suggest atelectasis and trace pleural effusion . However , pneumonia can not be excluded in the appropriate clinical setting . No pneumothorax . Severe scoliosis of visualized spine with resulting asymmetry of the chest wall is overall unchanged .
    OUTPUT:
    
Interval improvement in right lower lung opacity with very minimal residual opacity . Otherwise , no significant interval change .