Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . Overlying EKG leads are present , which somewhat limit the evaluation . The lungs appear clear . No pleural effusion or pneumothorax . Cardiomediastinal silhouette is normal . Faint atherosclerotic calcification again noted along the aortic knob . Bony structures intact .
    OUTPUT:
    
No acute findings in the chest .