Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and pulmonary vasculature are unremarkable . Surgical clips are seen in the upper right hemithorax . There is evidence of prior right thoracotomy . There is no focal consolidation . No pleural effusion or pneumothorax is present . No definite acute rib fracture is identified .
    OUTPUT:
    
No acute intrathoracic abnormality .