Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , exaggerating cardiac silhouette and causing crowding of the bronchopulmonary vasculature . Heart size is normal with mild tortuosity of the thoracic aorta . There is engorgement of the central pulmonary vasculature with increased interstitial lung markings compatible with moderate pulmonary edema . There is no clear focal consolidation suggestive of pneumonia . Pleural surfaces are clear without large pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes with central pulmonary vascular congestion and moderate interstitial pulmonary edema . The degree of edema appears worse than on subsequent CT evaluation suggestive some degree of improvement between the two exams .