This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Teuton giant cells are seen in: \nSelect and explain. \nA. Sarcoidosis, B. Tuberculosis, C. Foreign body granuloma, D. Xanthoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Touton giant cells\n\nThese giant cells are seen in lesions with high lipid content such as fat necrosis, xanthoma, and\xa0xanthogranulomas.\nThey are also found in dermatofibroma.\nThey are formed by the fusion of epithelioid cells (macrophages) and contain a ring of nuclei surrounded\xa0by a foamy cytoplasm.', 'role': 'assistant'}]