Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . Thoracic aorta is tortuous and calcified . Lungs are clear except for minor atelectasis at both lung bases adjacent to small pleural effusions , which are new compared to the recent abdominal CT .
    OUTPUT:
    
Small bilateral pleural effusions . No radiographic evidence of pneumonia .