Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Mediastinum , hila , and pleural surfaces are normal . Lungs are clear without focal consolidation , effusions , or pulmonary edema . A large hiatal hernia is unchanged and was present on the CT chest from ___ .
    OUTPUT:
    
No acute cardiopulmonary process . Stable mild cardiomegaly .