Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC line tip is at the level of mid SVC . NG tube tip is in the stomach . Heart size and mediastinum are unchanged including mild cardiomegaly . Bibasal atelectasis appear to be slightly more pronounced in particular in the left retrocardiac area .
    OUTPUT:
    
No significant interval change . Low lung volumes with bibasal opacities are likely atelectasis .