Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right - sided PICC line and right subclavian dialysis catheter are unchanged in position . The patient has had prior median sternotomy . A feeding tube terminates in the stomach . There is no pneumothorax . Moderate cardiomegaly is unchanged . The lungs are clear .
    OUTPUT:
    
Clear lungs with no evidence of pneumonia .