Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , accentuated by the presence of low lung volumes . Mediastinal contour is unremarkable . Lung volumes are low with mild crowding of the bronchovascular structures . No pulmonary edema is demonstrated . Patchy opacity within the right lung base may reflect atelectasis . No pleural effusion or pneumothorax is present . Eventration of the right hemidiaphragm is re - demonstrated . There are no acute osseous abnormalities . Moderate degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Low lung volumes with right basilar atelectasis . No pulmonary edema .