Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided PICC line has not changed since the previous exam . It is radiographically at the level of the lower portion of the superior vena cava . Stability of the low lung volumes and bilateral interstitial markings in this patient with known interstitial lung disease . There is no pneumothorax . There are no pleural effusion and no pneumothorax .
    OUTPUT:
    
The left - sided PICC line has not changed since the previous exam , it is radiographically in the lower region of the superior vena cava .