Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated with emphysematous changes again noted . The patient 's known spiculated 1 .5 cm right lower lobe lesion is partially obscured on this study . Right basilar opacities appear worsened since the prior study . There is probably also a concurrent small right pleural effusion with adjacent atelectasis . Irregular nodular opacities in the upper lobes are probably slightly improved . There is no evidence of pneumothorax . Cardiomegaly is stable . Dense aortic knob calcifications are seen . Enlargement of the hila bilaterally is compatible with pulmonary arterial hypertension .
    OUTPUT:
    
1 . Ill - defined opacities in the right lung base , worsened since the prior study , likely due to a combination of infection and small pleural effusion . 2 . Slightly improved aeration of the upper lobes . 3 . 1 .5 cm right lower lobe lesion which was concerning for malignancy as seen on the recent chest CT is not as well visualized on the current exam .