Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent diffuse opacification of the right upper lobe stable compared to prior . There is also persistent left basilar atelectasis as well as persistent opacification in the left lower lobe , although less apparent today . There is no pneumothorax . There is no pulmonary vascular congestion .
    OUTPUT:
    
1 . Stable appearance of right upper lobe pneumonia . 2 . No pulmonary vascular congestion . 3 . Left lower lobe opacity not as well seen on today 's study with left basilar atelectasis .