Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter remains in the low SVC . Lung volumes are low . Pulmonary vascular congestion continues to improved . Bibasilar atelectasis and probable small bilateral pleural effusions are unchanged . Mild cardiomegaly is stable . The mediastinal and hilar contours are stable . There is no pneumothorax .
    OUTPUT:
    
No evidence of pneumothorax .