Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . A tracheostomy tube is seen . As on prior study , cardiomegaly and pulmonary edema is re-demonstrated . There is no large pleural effusion or pneumothorax . Evaluation for subtle superimposed pneumonia is limited . Mediastinal contour is stably widened . Bony structures appear intact .
    OUTPUT:
    
Overall stable exam with pulmonary edema , cardiomegaly .