Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided PICC is in - situ , unchanged in appearance compared to the prior study . Precise localization of the tip is not possible as in the cardiomediastinal contour is obscured by right middle and lower lobe atelectasis . There is persistent prominence of the pulmonary vasculature consistent with mild congestive heart failure . No frank pulmonary edema . No pneumothorax seen .
    OUTPUT:
    
No significant interval change when compared to the prior study .