Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left perihilar opacification appears stable compared to the prior study . Again seen is a moderate left pleural effusion and left lower lobe atelectasis , unchanged compared to prior exam . The right lung is unchanged . The right - sided IJ terminates in the mid SVC . The ET tube terminates approximately 1 .5 cm from the carina . The hilar and mediastinal contours are unchanged . The heart size is stable .
    OUTPUT:
    
Stable left perihilar opacification compared to the study from ___ .