Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild right base atelectasis . No focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable and unremarkable . Slight prominence of the right hilum on the frontal view is stable since at least ___ .
    OUTPUT:
    
No acute cardiopulmonary process .