Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of chest are compared to previous exam from ___ . The lungs are clear of consolidation or effusion . Left - sided convex contour of the upper mediastinum is unchanged from previous exam compatible with enlarged thyroid . Cardiac silhouette is enlarged but stable in configuration . Osseous and soft tissue structures are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .