Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral moderate - to - severe pleural effusion with bibasilar atelectasis is unchanged since ___ . The underlying lungs are subsequently hard to assess , but there is no significant change . Right PICC line ends in lower SVC . ET tube is 5 .2 cm above the carina . Left subclavian line is in upper SVC . NG tube is below the diaphragm . There is no pneumothorax . Mediastinal and cardiac contours are normal .
    OUTPUT:
    
Moderate - to - severe bilateral pleural effusion is basically unchanged since ___ .