Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine portable radiograph through the chest was obtained . External trauma board somewhat limits evaluation . Lung volumes are low bilaterally . No focal consolidation is identified . Cardiomediastinal and hilar contours are within normal limits . No large pleural effusion is seen . The right apex is out of the field of view . Allowing for this , no pneumothorax is seen . Osseous structures are without acute abnormality .
    OUTPUT:
    
No acute intrathoracic abnormality identified . Please note that chest radiograph is an inadequate modality in the setting of chest trauma and high suspicion for traumatic injury .