Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal chest radiograph demonstrate two left pleural drains , one terminating at the left lung apex and the other deep within the posterior left costophrenic angle . There is no pneumothorax . There appears to be better aeration bilaterally with persistent bibasilar opacification , probably atelectasis but can not exclude infection . Normal heart size . The stomach is moderately distended .
    OUTPUT:
    
Bibasilar opacifications , probably atelectasis but can not exclude infection . No pneumothorax . Moderately distended stomach .