Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi upright radiograph of the chest demonstrates hyperexpanded lungs . Chronic interstitial markings suggests elevated pulmonary venous pressure . The lungs are not significantly changed from the prior study . There are small bilateral pleural effusions . As before , the area of increased opacification in the left mid lung zone is worrisome for pneumonia . The endotracheal tube ends 2 .5 cm from the carina . The tip of the nasogastric tube is not definitely visualized .
    OUTPUT:
    
No significant interval change .