Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal views of the chest were obtained . Severe cardiomegaly , mediastinal contours , and elevation of the left hemidiaphragm are not appreciably changed since ___ . No new focal consolidation , pleural effusion , or pneumothorax . Sternotomy wires are intact .
    OUTPUT:
    
No acute cardiopulmonary process . Stable severe cardiomegaly and elevation of left hemidiaphragm .