Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been very little change since prior radiographs . Small left pleural effusion and basilar atelectasis are unchanged . There are no lung opacities concerning for pneumonia . Heart size , mediastinal and hilar contours are normal . Feeding tube ends into the body of the stomach .
    OUTPUT:
    
Small left pleural effusion and basilar atelectasis is unchanged since ___ .