Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Overlying EKG leads are present . The lungs appear clear . No supine evidence for effusion or pneumothorax . Heart size is normal . The hila appear somewhat prominent and ill - defined likely due to technique . Prominence of the mediastinum likely due to portable supine technique . No definite fracture is identified .
    OUTPUT:
    
No acute findings .