Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Either in spite of , or because of , low lung volumes , the heart size appears top normal , and there appears to be cephalic redistribution of pulmonary vasculature . The mediastinal and hilar contours appear unremarkable . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes with possible early heart failure .