This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tuberculosis, Subject name: Medicine
[{'content': 'Tuberculous pleural effusion is characterized by all except? \nSelect and explain. \nA. Hemorrhage, B. LDH more than 60%, C. Protein is increased, D. Mesothelial cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mesothelial cells are found in variable numbers in most effusions, but their presence at greater than 5% of total nucleated cells makes a diagnosis of TB less likely. Markedly increased number of mesothelial cells, especially in bloody eosinophilic effusions, suggests pulmonary embolism as the cause of an effusion.', 'role': 'assistant'}]