Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained demonstrating clear well expanded lungs without focal consolidation , effusion , pneumothorax . No pleural effusion or pneumothorax is seen . Cardiomediastinal silhouette appears normal . A retrocardiac linear density projecting on the lateral view over the lower vertebral bodies is likely a superimposed shadow of bronchovasculature with the vertebra . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .