Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . There are small bilateral pleural effusions . There is mild pulmonary vascular congestion without frank pulmonary edema . Heart size is normal . The mediastinal and hilar contours are unremarkable . There is no pneumothorax . Gas along the right chest wall is likely postoperative .
    OUTPUT:
    
Small bilateral pleural effusions and mild pulmonary vascular congestion