Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable , with mild cardiomegaly . Dense consolidation in the retrocardiac left lung base is unchanged and may represent atelectasis or pneumonia . Mild pulmonary edema and a small left pleural effusion are unchanged . A nasogastric tube terminates in the body of the stomach . Dextroconvex thoracic scoliosis and spine fixation hardware are noted .
    OUTPUT:
    
Dense retrocardiac left lower lobe consolidation , small left effusion and moderate pulmonary edema , stable since the earlier study done today .