Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , perihilar and bibasilar opacities have decreased . There is no pulmonary edema . Focal consolidation at the right lung base has improved . There is some persistent linear density at the right lung base . There is no pneumothorax . Costophrenic angles are obscured , could be due to overlying tissue or technique . Pleural effusions can not be excluded , if clinical concern , PA and lateral chest radiographs can be obtained . There is moderate cardiomegaly , unchanged since prior examination . The hilar and mediastinal contours are within normal limits .
    OUTPUT:
    
Improving right basilar opacity with some persistent linear density .