Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Semi-upright portable AP view of the chest was provided . ETT tip resides approximately 4 .6 cm above the carina . The NG tube courses into the left upper abdomen . The Port - A - Cath is unchanged with tip in the region of the mid SVC . There is volume loss in the left lung with evidence of prior left upper lobectomy with clips in the left mid to upper lung noted . Scarring in the right upper lung is present . There is no definite evidence for pneumonia or CHF . No large effusion or pneumothorax is seen . Cardiomediastinal silhouette is stable . Bony deformities in the left upper rib cage are unchanged , reflective of prior surgery .
    OUTPUT:
    
Appropriately positioned ET and NG tubes . Post - surgical changes in the left upper lung .