Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate no displaced rib fracture , although current study is not optimized for further evaluation . The cardiomediastinal silhouette is unremarkable . Patient is rotated slightly to the right . The lungs are clear . There is no pneumothorax , vascular congestion , or pleural effusion .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No displaced rib fracture .