Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is elevation of the right hemidiaphragm . The heart size is normal . There is no pneumothorax . The aorta is tortuous . The lung fields are clear . Mild dextroscoliosis is incidentally noted . A rounded density projecting over the lower thoracic spine is of uncertain etiology . Small bilateral pleural effusions . Atelectasis at the right lung base is mild .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . A rounded density projecting over the lower thoracic spine is of uncertain etiology .