Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation , effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Tortuous thoracic aorta is noted . Deformities of anterior left fourth and fifth ribs suggest prior fractures .
    OUTPUT:
    
No definite acute cardiopulmonary process . If desired , dedicated rib series can be performed .