Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . Left - sided IJ line terminates in the mid SVC . There is no pneumothorax . Compared to prior study , lungs are better aerated and there is slight improvement in left lung base opacity . Right lung base opacity is unchanged compared to prior study . Cardiomediastinal contour or is stable .
    OUTPUT:
    
Left - sided IJ line in appropriate position . No pneumothorax .