Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine frontal chest radiographs demonstrate no acute consolidation , effusion , or pneumothorax . The heart size is moderately enlarged . The mediastinal contours are slightly hazy , with note of calcification of the aortic arch . The pulmonary vasculature is normal .
    OUTPUT:
    
Moderate cardiomegaly , though normal pulmonary vasculature . No consolidation .