Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An azygos lobe is incidentally noted . There are low lung volumes . Mild basilar atelectasis without definite focal consolidation . There is central pulmonary vascular engorgement without overt pulmonary edema . The cardiac mediastinal silhouettes are likely exaggerated by a supine , AP technique . Thoracic spine fractures and sternal fracture better pain on subsequent CT .
    OUTPUT:
    
Central pulmonary vascular engorgement . Thoracic spine and sternal fractures better seen on the subsequent CT .