Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is severe cardiomegaly and moderate pulmonary edema , progressed since ___ . There is no large pleural effusion , and no pneumothorax . The mediastinum and hila are normal . Moderate degenerative changes at the lower thoracic spine are again seen .
    OUTPUT:
    
Moderate pulmonary edema .