Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The cardiac silhouette is borderline enlarged . Pulmonary vasculature is unremarkable . There is no definite focal consolidation . No pleural effusion or pneumothorax is identified . Chronic thoracic vertebral height loss and left sided rib fractures are noted .
    OUTPUT:
    
No acute intrathoracic abnormality .