Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Patient is status post median sternotomy . Lungs are grossly clear . No pneumothorax . Minimal right pleural effusion is unchanged from ___ . Hilar contours are normal . The aorta is mildly tortuous and there is mild cardiomegaly .
    OUTPUT:
    
Minimal right pleural effusion is unchanged from ___ . Otherwise , no evidence of acute cardiopulmonary process .