Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right middle lobe opacity is worse than on ___ . Lungs are hyperexpanded . Mediastinal contours , hila , and cardiac silhouette are normal . No pleural effusions . Dextroscoliosis of the thoracic spine is moderate , unchanged .
    OUTPUT:
    
Right middle lobe opacity is worse than on ___ . If clinically asymptomatic or improving , repeat chest radiograph in 4 weeks is recommended . If not resolved then , chest CT is recommended to exclude post obstructive lesion .