Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is no focal consolidation , effusion , or pneumothorax . A linear area of atelectasis is seen in the lingula . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Surgical clips in the right upper quadrant are seen . A chest port overlying the right chest wall terminates at the SVC . A 1 cm linear opacity overlying the right border of the trachea is likely external to the patient .
    OUTPUT:
    
1 . Diffuse , air - filled distention of the thoracic esophagus suggests esophageal dysmotility . 2 . No new lung findings to account for shortness of breath .