Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is unchanged , and within normal limits . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . There is minimal streaky opacity in left lung base most likely reflective of atelectasis . No pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality other than minimal left basilar atelectasis .