Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is 2 cm from the carina . Enteric tube courses into the stomach and beyond the healed . There are bilateral subpleural reticulations which could reflect a background of fibrosis . Mild pulmonary edema is improving . There is increased opacity at the right base which could reflect aspiration or pneumonia . There is no large pleural effusion or pneumothorax . Heart size is normal . The mediastinal and hilar contours are normal . The aortic arch is calcified .
    OUTPUT:
    
1 . Worsening opacity at the right base could reflect aspiration or pneumonia . 2 . Mild pulmonary edema is improving 3 . Subpleural reticulations suggest a background of fibrosis .