Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate improved , although persistent opacity in the right upper lobe . The left lung is clear . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Improving although persistent opacity in the right upper lobe . If the patient is clinically improving , there is no need for repeat imaging . If symptoms persist or change , recommend additional evaluation with repeat PA and lateral radiographs .