Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine portable view of the chest was obtained . Underlying trauma board and external artifact partially obscure the view . Given this , no focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . Evidence of at least two old right - sided rib fractures is noted .
    OUTPUT:
    
No acute intrathoracic process .