Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear and the lung volumes are normal . There is no pleural effusion , pneumothorax or focal airspace consolidation . Left upper lobe pleural thickening is better demonstrated on the prior CT . The heart is normal in size . The mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .