Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest radiograph ___ at 04 :56 is submitted . Left costophrenic angle is not entirely included .
    OUTPUT:
    
Fluctuating bilateral perihilar airspace opacities consistent with worsening pulmonary edema rather than infection . Stably widened cardiac and mediastinal contours likely related to differences in patient positioning . Left subclavian central line unchanged in position . Endotracheal tube continues to have its tip approximately 4 .5 cm above the carina . A nasogastric tube is only seen to the level of the distal esophagus , possibly related to underpenetration , although clinical correlation is recommended to ensure that it has not pulled back .