Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . The lungs are mildly hyperexpanded . However , there is no focal consolidation , pleural effusion , or pneumothorax . Moderate cardiomegaly , notably involving the left atrium , is unchanged from ___ . There is no evidence of pulmonary edema .
    OUTPUT:
    
No acute cardiopulmonary process .