Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 06 : 22 is submitted .
    OUTPUT:
    
Left internal jugular central line has its tip in the distal brachiocephalic near the junction with the SVC . A right internal jugular large bore catheter unchanged in position . Overall cardiac and mediastinal contours remain stably enlarged . Lung volumes are diminished . Interval improvement in mild pulmonary edema . No large effusions . No pneumothorax is appreciated . Patchy opacity at the right medial lung base likely reflects atelectasis , although superimposed pneumonia can not be excluded .