Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large hiatal hernia , causing lower lobe atelectasis . Otherwise , the lungs are grossly clear . There is no pleural abnormality . The hilar and mediastinal contours are improved from prior . Bone - on - bone degenerative changes of the right glenohumeral joint is seen . There is compression fracture of a lower thoracic vertebra , unchanged from ___ . Heavy calcification in the mitral annulus and thoracic aorta are seen .
    OUTPUT:
    
Basal atelectasis . No pulmonary edema , pleural effusion or consolidation .