Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable view of the chest shows little overall change to bilateral pleural effusions with the right tracking laterally . The cardiomediastinal silhouette is grossly stable . Endotracheal tube , feeding tube , and right PICC are unchanged in position . There is no pneumothorax .
    OUTPUT:
    
No significant interval change . In view of extensive changes in the lungs , a superimposed pneumonia would be difficult to exclude .