Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest demonstrates hyperinflated lungs . Within the right upper lobe , an opacification is identified which corresponds to resolving lung abscess , better delineated on CT chest dated ___ . The cardiomediastinal and hilar contours are unremarkable . When compared to prior examination dated ___ , there has been no interval change . Pulmonary vasculature is normal in appearance . There is no pneumothorax or pleural effusion . Visualized osseous structures demonstrate no acute abnormality .
    OUTPUT:
    
No acute intrathoracic abnormality .