Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single semi-erect portable radiograph of the chest was acquired . Small bilateral pleural effusions are better appreciated on the outside hospital CT from earlier today at 5 :32 p .m . Bibasilar and right mid lung heterogeneous opacities are at least partially due to compressive atelectasis , although a concomitant bibasilar process such as aspiration pneumonitis or infection is thought likely . There is no pneumothorax . The heart size is normal . Enlargement of the aortic knob and descending thoracic aortic contours likely relate to a known intramural hematoma , as seen on CT from ___ .
    OUTPUT:
    
1 . Findings concerning for bibasilar aspiration pneumonitis and / or pneumonia . Concomitant atelectasis is also present at the bases . 2 . Bilateral small pleural effusions , as seen on CT from earlier today at 5 :32 p .m .