Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One portable AP view of the chest . The lungs , heart , mediastinum , and pleural surfaces are normal . There is no evidence of pneumonia , effusion , or atelectasis . There is no pulmonary vascular congestion . No pneumothorax .
    OUTPUT:
    
No radiographic evidence of acute cardiopulmonary abnormality .