Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are 2 coronary artery stents as seen on multiple prior radiographs . Cardiomediastinal silhouette is unremarkable . There is no focal consolidation , pulmonary edema , pleural effusion , or pneumothorax . Incidentally , a chronic left seventh posterior rib fracture is again noted .
    OUTPUT:
    
No acute intrathoracic abnormality .