Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is top - normal in size . The pulmonary vasculature is unremarkable , with mild prominence of the mediastinal vessels , unchanged since the prior examination . There is no pleural effusion or pneumothorax . No definite consolidation is identified .
    OUTPUT:
    
No acute intrathoracic abnormality .