Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 05 :08 is submitted .
    OUTPUT:
    
Right subclavian central line is unchanged in position . The heart remains stably enlarged . Mediastinal contours are also unchanged . There are layering bilateral effusions with associated patchy airspace process most likely representing compressive atelectasis , although superimposed pneumonia can not be excluded . There is worsening perihilar asymmetric edema , right greater than left . No pneumothorax is appreciated .