Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . There is no change in the position of left arm PICC line , NG tube , spinal hardware . The endotracheal tube is likely terminating in the mid trachea . There is improved aeration compared with prior . No definite pneumothorax is seen . No large effusions . Mild edema may be present . No bony abnormalities .
    OUTPUT:
    
Improved aeration though mild edema persists . No pneumothorax .