Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear . Known pulmonary nodules seen on PET - CT are not clearly delineated on the current exam . Cardiomediastinal silhouette is normal . No acute osseous abnormality detected . Hypertrophic changes noted in the spine .
    OUTPUT:
    
No acute cardiopulmonary process .