Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is within normal limits . Better seen on the lateral view there is a rounded density which is most likely secondary to hypertrophic changes of the costovertebral junction projecting over the lower thoracic spine , given continuity with the associated rib .
    OUTPUT:
    
No acute cardiopulmonary process .