Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Lung volumes are low , though lungs appear clear . The heart size is normal . The aorta is unfolded . Mild atherosclerotic calcification is noted along the aortic arch . No pneumothorax or effusion . There is a compression deformity in the lower thoracic spine , acuity unknown . Otherwise , the imaged bony structures appear intact .
    OUTPUT:
    
Age - indeterminate lower thoracic compression deformity . Otherwise , unremarkable .