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: Dental
[{'content': 'Which of the following tuberculids is characterized by involvement of sweat glands, and hair follicles with noncaseating epithelioid granuloma ? \nSelect and explain. \nA. Lichen scrofulosorum, B. Miliary tuberculosis, C. Papulonecrotic type, D. Lupus vulgaris', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In Lichen scrfulosorum\xa0,hallmark feature is\xa0 superficial epitheloid dermal granulomas that surround hair follicles and\xa0sweat ducts and may occupy several dermal papillae.\nCaseous necrosis is usually not seen.', 'role': 'assistant'}]