Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , resulting in exaggeration of the cardiomediastinal silhouette and central pulmonary vasculature . There is mild dextro convex scoliosis of thoracic spine with also alters the mediastinal contour . No focal consolidation or pleural effusion . No pneumothorax .
    OUTPUT:
    
Low lung volumes , but no evidence pulmonary edema or pneumonia .