Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube ends 22 mm above the carina . Nasogastric tube noted ; tip is not visible . Bilateral pulmonary vascular engorgement is unchanged . The left hemidiaphragm is not well defined , likely reflecting a small pleural effusion . Cardiomediastinal contours are unchanged . No pneumothorax .
    OUTPUT:
    
No significant changes compared to the prior study .