Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is mildly enlarged but this is accentuated by the presence of low lung volumes . The mediastinal and hilar contours are unchanged . Previously noted orogastric tube has been removed . There is crowding of the bronchovascular structures , and the previous pattern of pulmonary edema has improved . Small left pleural effusion has decreased from the prior study , and a probable trace right pleural effusion persists . Minimal bibasilar atelectasis is noted . No pneumothorax is identified . There are no acute osseous findings .
    OUTPUT:
    
Interval improvement in pulmonary edema which is now mild . Small bilateral pleural effusions , also decreased in the interval . Mild bibasilar atelectasis .