Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . No focal consolidation , pleural effusion , or pneumothorax . Catheter projected over the left upper quadrant is partially imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .