Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright radiograph of the chest was obtained . The lungs are well expanded and clear . Left PICC terminates in the cavoatrial junction . There is no focal consolidation , pleural effusion , or pneumothorax . The heart is normal in size with normal cardiomediastinal contours .
    OUTPUT:
    
No acute intrathoracic process .