Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest wall port is again seen . There is linear scarring at the right lung base medially . Lungs are clear without consolidation , effusion , or pneumothorax . Postoperative changes of prior esophagectomy are better seen on prior CT scan . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .