Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Volumes are low limiting assessment . Heart size can not be assessed given low lung volumes . No large effusion or pneumothorax . The hila are congested and there is mild to moderate pulmonary edema . In addition , scattered perihilar opacities raise potential concern for a superimposed pneumonia . Mediastinal contour is difficult to assess . Bony structures are intact . Clips in the upper abdomen noted .
    OUTPUT:
    
Limited exam with pulmonary edema possibly with superimposed pneumonia .