Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previous right lung base airspace opacity has nearly completely resolved leaving minimal residual opacities , which may be due to mild scarring . This opacity is not definitely seen on the lateral radiograph . There are no new consolidations or pleural effusions . The heart and mediastinum are within normal limits . Regional bones and soft tissues are unremarkable .
    OUTPUT:
    
Substantially improved right basilar opacity , likely reflecting resolving pneumonia .