Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiograph demonstrates unremarkable mediastinal , hilar , and cardiac contours . Lung volumes are low bilaterally but clear . No pleural effusion or pneumothorax evident . A right - sided Port - A - ___ tip terminating at the cavoatrial junction .
    OUTPUT:
    
No acute intrathoracic process .