Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low leading to crowding of the bronchovascular structures . Mild central pulmonary vascular congestion is noted . The bilateral costophrenic angles are not well visualized , which may be secondary to trace pleural effusions versus atelectasis versus body habitus . The upper lung fields are grossly clear without lobar consolidation or pneumothorax . Heart is moderately enlarged and the descending thoracic aorta is tortuous .
    OUTPUT:
    
Stable , moderate cardiomegaly and mild central vascular pulmonary congestion . Possible trace bilateral pleural effusions . No lobar consolidation .