Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged . The mediastinal and hilar contours are unchanged . There has been interval improvement in multifocal opacities within the right lower lobe and left upper lobe , likely reflecting areas of resolving pneumonia . Minimal streaky opacity in the left lung base likely reflects atelectasis . Pulmonary vascularity is not engorged . No pleural effusion or pneumothorax is present . No acute osseous abnormality is identified .
    OUTPUT:
    
Residual patchy opacities within the right lower lobe and left upper lobe compatible with improving pneumonia . Minimal left basilar atelectasis .