Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiac silhouette and lungs which are clear without focal consolidation , pleural effusion , or pneumothorax . A widened mediastinum is likely due to mediastinal lipomatosis and appear similar to prior studies . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . No pneumothorax identified .