Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral small pleural effusions , right greater than left , and mild retrocardiac atelectasis are new since ___ . Lung volumes are low . Borderline cardiomegaly is unchanged . Median sternotomy wires are intact and well aligned . No pneumothorax , pulmonary edema , or focal consolidations .
    OUTPUT:
    
1 . Bilateral small pleural effusions , right greater than left , and mild retrocardiac atelectasis are new since ___ .