This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial Infection of Skin, Subject name: Skin
[{'content': 'Which of the following tuberculoides is characterized by involvement of sweat glands & hair follicle with non caseating epithelioid granuloma? \nSelect and explain. \nA. Lichen scrofulosorum, B. Miliary tuberculosis, C. Papulonecrotic tuberculide, D. Lupus vulgaris', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. lichen scrofulosorumHistopathology of Lichen scrofulosorum shows hair follicle infiltrated with mononuclear cells and occasional epithelioid cells, and upper dermal granuloma formed by mononuclear cells and epithelioid cells. Ziehl-Neelsen may demonstrate AFB.', 'role': 'assistant'}]