Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear . There is no effusion . Cardiomediastinal silhouette is within normal limits . Old healed right posterior rib fractures again seen in addition to degenerative changes at the glenohumeral joints .
    OUTPUT:
    
No acute cardiopulmonary process .