Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is detected . No acute osseous abnormalities seen . Contrast from recent CT angiogram exam is seen within the collecting systems bilaterally .
    OUTPUT:
    
No acute cardiopulmonary abnormality .