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 ___ and chest CT from ___ . The lungs are clear . Cardiomediastinal silhouette is normal . There is a bone island identified on the lateral view in one of the mid thoracic vertebral bodies , unchanged from prior CT scan . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .