Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . No focal consolidation , pleural effusion , or pneumothorax is detected . Heart size is top normal . Mediastinal contours are within normal limits in the setting of low lung volumes . Pulmonary vasculature is prominent but may be exaggerated by low lung volumes and / or be related to hydration .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .