Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A right thoracostomy tube is unchanged in position . A nasogastric tube is present , with the termination point not well visualized . There is no pneumothorax . Small bilateral pleural effusions are stable . Mild right basilar atelectasis has increased since the prior examination .
    OUTPUT:
    
Slight increase in right basilar atelectasis . No pneumothorax .