Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube and right PICC line are unchanged in position . Since the most recent prior radiograph , there is no new parenchymal infiltrate or no significant interval change . Opacification of the left base with mild blunting of both costophrenic angles most likely represent small amount of fluid and atelectasis . There is no pneumothorax . Cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
No significant interval change . Left lower lung opacity may be due to atelectasis , however infectious process can not be ruled out . Stable small bilateral pleural effusions .