Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiographs demonstrate no focal consolidation convincing for pneumonia . The cardiomediastinal and hilar contours are stable when compared to prior radiograph dated ___ . There is no pleural effusion or pneumothorax . Re - demonstration of a chronic right humeral head deformity .
    OUTPUT:
    
No acute intrathoracic abnormality .