Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , unchanged . The aorta is diffusely calcified . Mediastinal contours otherwise are unremarkable . There are low lung volumes with crowding of the bronchovascular structures . Mild pulmonary vascular engorgement is noted . Streaky bibasilar opacities likely reflect atelectasis . No pleural effusion or pneumothorax is identified . Diffuse demineralization of the osseous structures is noted with unchanged compression deformity at the thoracolumbar junction .
    OUTPUT:
    
Mild pulmonary vascular engorgement and bibasilar atelectasis .