Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The aorta is mildly tortuous but unchanged . The mediastinal and hilar contours are within normal limits . Pulmonary vasculature is not engorged . Apart from streaky atelectasis in the lung bases , lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are visualized . Remote left - sided rib fractures are noted .
    OUTPUT:
    
No radiographic evidence for pneumonia .