Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Ill - defined patchy opacity is seen within the right upper lobe which may reflect residual or ongoing pneumonia . Left lung is clear without focal consolidation . No pleural effusion or pneumothorax is demonstrated . No acute osseous abnormalities present .
    OUTPUT:
    
Patchy right upper lobe opacity concerning for residual or ongoing pneumonia .