Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . The heart size is normal . Thoracic aorta mildly elongated , but no local contour abnormalities or wall calcifications are seen . The pulmonary vasculature is not congested . The diaphragms are in relatively high position resulting in some mildly crowded appearance of the pulmonary vasculature on the bases . Thin linear densities are seen bilaterally suggesting the presence of scar formations rather than atelectasis . Similar as shown on previous examination , there is evidence of old rib fractures on the right base laterally with local pleural thickenings . No new abnormalities are identified . There is no evidence of pleural effusions as the lateral and posterior pleural sinuses are free . On the lateral view , the structures of the upper abdomen are underpenetrated , but with change in mixed density , one can appreciate a significant compression fracture of L2 . It is noted that lumbar spine examination was ordered and performed during the same day .
    OUTPUT:
    
No cardiac enlargement or pulmonary congestion . Mild deformities of right - sided ribs related to old trauma . No new acute abnormalities . Thin basal scar formations but no true major atelectasis is seen .