Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly lower compared to the prior radiograph . There is mild pulmonary vascular congestion and enlargement of the central pulmonary vasculature . Moderate cardiomegaly is noted . There is no focal consolidation , pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Moderate cardiomegaly and mild pulmonary vascular congestion .