Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiograph demonstrates clear lungs bilaterally except for minimal linear bibasilar atelectasis . Cardiomediastinal and hilar contours are within normal limits . There is no pneumothorax , pleural effusion , or pulmonary edema . A left PICC terminates at or just below the cavoatrial junction .
    OUTPUT:
    
No evidence of pneumonia .