Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Previously seen left - sided central venous catheter is no longer identified . The lungs are clear . The cardiomediastinal silhouette is normal . There is no effusion or pneumothorax . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary process .