Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine AP portable view of the chest was obtained . Underlying trauma board partially obscures the view . The costophrenic angles are fully included on the image . Given this , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are unremarkable . No displaced fracture is seen .
    OUTPUT:
    
No acute intrathoracic process .