Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size remains mildly enlarged . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is present . Minimal atelectasis is noted in the right lower lobe . There are no acute osseous abnormalities .
    OUTPUT:
    
Minimal atelectasis in the right lower lobe . Otherwise , no acute cardiopulmonary process .