Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine AP portable view of the chest was obtained . No focal consolidation is seen . There is no pleural effusion or evidence of pneumothorax . Mediastinal contours are normal . The cardiac silhouette is accentuated by AP , supine technique . No displaced fracture is identified .
    OUTPUT:
    
No evidence of acute intrathoracic injury .