Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unchanged . Dense atherosclerotic calcifications are noted at the aortic knob . Atelectasis is noted in the lung bases without focal consolidation . Mild elevation of the right hemidiaphragm is chronic with lateralization of the diaphragmatic apex , likely attributable to the presence of a small subpulmonic effusion . No pneumothorax is present . There is no pulmonary vascular congestion . Diffuse gaseous distention of bowel loops are seen in the upper abdomen . Posterior fixation hardware is noted within the thoracic spine with re - demonstration of diffuse osteopenia and multiple compression deformities .
    OUTPUT:
    
Small right pleural effusion . No acute cardiopulmonary abnormality otherwise demonstrated .