Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Mild to moderate cardiomegaly is noted . The aortic knob is calcified . There is crowding of the bronchovascular structures with mild pulmonary vascular congestion noted . Streaky bibasilar airspace opacities could reflect atelectasis . Infection or aspiration are not excluded . There is no pleural effusion or pneumothorax . Remote right humeral neck fracture is visualized .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion . Streaky bibasilar airspace opacities may reflect atelectasis though infection or aspiration are not excluded . Remote right humeral neck fracture .