Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . Lung volumes are lower and bibasilar atelectasis is increased from ___ . Retrocardiac opacity may represent atelectasis , infection or aspiration . The upper lung zones are clear . Cardiac and mediastinal silhouettes are unchanged with borderline cardiomegaly . There is no pleural effusion or pneumothorax . A displaced right humeral fracture is incompletely evaluated on the study .
    OUTPUT:
    
1 . Bibasilar atelectasis . Retrocardiac opacity is likely atelectasis , but may be infection or aspiration . 2 . Displaced right humeral fracture . Dedicated radiographs are recommended . Finding # 2 was discussed with Dr . ___ by phone at 8 :38 a .m . ___ immediately upon discovery .