Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of chest demonstrate fully expanded and clear lungs . The mediastinal contour is unremarkable . The heart is top - normal in size . There is no pleural effusion or pneumothorax . An oval density projecting over the eighth rib posteriorly is likely a calcified granuloma .
    OUTPUT:
    
No mediastinal widening .