Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac and mediastinal silhouettes are stable without abnormal widening of the mediastinum . The aorta is calcified and tortuous . No focal consolidation is seen . No pleural effusion or pneumothorax is seen . There is persistent moderate compression of a lower thoracic vertebral body . Additionally , there is stable chronic deformity of anterior left rib , , left anterior sixth rib . Subtle 3 - 4 mm nodular density projecting over the anterior lateral left third rib is stable and may represent a bone island , artifact , or other benign process .
    OUTPUT:
    
No acute cardiopulmonary process . No significant interval change .