Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at 04 :56 is submitted .
    OUTPUT:
    
Interval appearance of pulmonary vascular indistinctness and perihilar fullness suggestive of mild perihilar and pulmonary edema . The cavitary nodular opacity in the right upper lobe is stable . Patchy opacity at the right base is felt to more likely be related to the pulmonary edema rather than representing a superimposed infection . This can be better assessed on followup imaging . No large effusions . No pneumothorax . Overall cardiac and mediastinal contours are unchanged given differences in patient rotation .