Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Lung volumes are low with small bilateral pleural effusions . However , there is no evidence of pulmonary edema . Moderate cardiomegaly is unchanged from prior study . Median sternotomy wires are intact .
    OUTPUT:
    
Small bilateral pleural effusions and bibasilar atelectasis .