Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Support Devices : The endotracheal tube terminates 3 .2 cm above the carina . A right internal jugular central venous line terminates within the SVC . Lung volumes are low . There is persistent left lower lobe atelectasis . The lungs are otherwise clear . Mild cardiomegaly is unchanged . There is crowding of the bronchovascular markings from low lung volumes . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Low lung volumes . Aside from left lower lobe atelectasis , the lungs are clear .