Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mildly enlarged with a left ventricular predominance . The aorta remains unfolded with aortic knob calcifications again seen . There is crowding of the bronchovascular structures with mild pulmonary vascular congestion . Streaky bibasilar airspace opacities are most likely reflect atelectasis . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities are detected .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion and probable bibasilar atelectasis .