Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or edema . Incidentally noted is an azygos fissure . There is moderate enlargement of the cardiac silhouette . Atherosclerotic calcifications are noted at the arch . Median sternotomy wires are intact . Compression deformity of a lower thoracic vertebral body is seen .
    OUTPUT:
    
Enlarged cardiac silhouette which could be due to cardiomegaly although pericardial effusion is possible . No superimposed acute cardiopulmonary process . Age indeterminate compression deformity in the lower thoracic spine .