Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . Evaluation is somewhat limited due to underpenetration . Allowing for this , the lungs are clear . No focal consolidation , large effusion or pneumothorax . No convincing signs of edema or congestion . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
No acute intrathoracic process