Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright frontal view of the chest . The lungs are clear without focal opacity , vascular congestion , pleural effusion or pneumothorax . The cardiac silhouette is enlarged . The aortic knob is calcified . There is orthopedic hardware in one of the humeri . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary process .