Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is at least 7 to 7 .5 cm above the carina . Small left pleural effusion effusion is present . No evidence of pneumothorax . There is mild pulmonary vascular congestion and mild asymmetric edema unchanged compared to prior study . Chronic left lower lobe collapse is also noted . The monitoring and support devices are unchanged compared to prior study .
    OUTPUT:
    
No evidence of pneumonia . ET tube remains several cm above the optimal position . Chronic left lower lobe collapse . Mild pulmonary vascular congestion and pulmonary edema unchanged .