Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiograph was obtained . The lungs are well expanded and clear without pleural effusion or pneumothorax . The heart is normal in size with normal cardiomediastinal contours aside from mildly tortuous aorta . Right Port - A - Cath is unchanged in appearance .
    OUTPUT:
    
No acute intrathoracic process .