Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Lungs are clear . There is no pleural effusion or pneumothorax . Heart size is top normal . Slight prominence of ascending aorta which could relate to tortuosity but underlying mild dilatation can not be excluded .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Slight prominence of ascending aorta which is likely related to tortuosity but underlying mild prominence / dilatation can not be excluded . 2 . Heart size top normal .