Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiograph demonstrate clear lungs bilaterally . Cardiomediastinal and hilar contours are stable in appearance . There is no pleural effusion or pneumothorax . Re - demonstration of a vascular stent in stable position . Osteal lysis involving part of the distal right clavicle is noted . A metallic anchor is noted within the right humeral head .
    OUTPUT:
    
No acute intrathoracic abnormality .