Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . Upper mediastinal contours are unremarkable . Lung volumes are low with minimal bibasilar atelectasis . Lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process . Mild cardiomegaly .