Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . The lungs remain clear . Cardiomediastinal silhouette is stable . Osseous and soft tissue structures are unchanged , noting probable post-traumatic changes in the right coracoclavicular region .
    OUTPUT:
    
No acute cardiopulmonary process .