Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiograph is compared to prior radiograph dated ___ . Overall appearance of the chest is not significantly changed with stable cardiomegaly and mediastinal contour . Left basilar atelectasis is noted . There is no large pleural effusion , pneumothorax , or evidence of pulmonary edema . S shaped scoliosis of the thoracolumbar spine is present .
    OUTPUT:
    
No focal opacity convincing for pneumonia . Cardiomegaly without pulmonary edema .