Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without evidence of consolidation or pulmonary edema . There is no pleural effusion or pneumothorax . The thoracic aorta is unfolded . The appearance is not changed from prior exam of ___ . The cardiomediastinal silhouette is otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Unchanged appearance of the cardiomediastinal silhouette .