Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low with patchy opacities at the lung bases . More reticular opacities are consistent with chronic fibrotic changes . No supine evidence of pneumothorax or large pleural effusion is seen . The heart size is within normal limits . An endotracheal tube is in standard position with tip approximately 3 cm above the carina . An esophageal catheter is in place with tip and side port within the stomach .
    OUTPUT:
    
1 . Hazy opacities at the lung bases with chronic fibrotic changes . Given clinical presentation and fever , acute superimposed pneumonia is a concern on this radiograph , though is not clearly confirmed on the subsequent CT . 2 . Endotracheal tube and esophageal catheter in standard positions .