Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs are clear of consolidation , effusion , or pulmonary vascular congestion . Cardiac silhouette is mildly enlarged as on prior . A prosthetic mitral valve is noted . Median sternotomy wires also seen . No acute osseous abnormality detected .
    OUTPUT:
    
No acute cardiopulmonary process .