Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe cardiomegaly is similar to the prior examination . Hilar contours are unremarkable with mild prominence of the central pulmonary vasculature though there is no frank interstitial edema . Lungs are clear . The pleural surfaces are clear without effusion or pneumothorax . Median sternotomy wires are intact . Surgical clips are noted along the upper left mediastinum from prior left hemithyroidectomy .
    OUTPUT:
    
No acute cardiopulmonary abnormality .