Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . The lungs are fully expanded and clear . Heart size is moderately enlarged . The hilar contours and pleural surfaces are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly without evidence of acute cardiopulmonary process .