Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable single frontal chest radiograph was obtained . The previous area of opacity in the right upper lobe has resolved , along with focal areas of lucency . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal .
    OUTPUT:
    
Interval resolution of right upper lobe hemorrhage and small pneumatoceles . No pneumothorax .