<prompt> Which of the following tuberculids is characterized by involvement of sweat glands, and hair follicles with noncaseating epithelioid granuloma ?Lichen scrofulosorumMiliary tuberculosisPapulonecrotic typeLupus vulgaris  <response>: In Lichen scrfulosorum ,hallmark feature is superficial epitheloid dermal granulomas that surround hair follicles and sweat ducts and may occupy several dermal papillae.Caseous necrosis is usually not seen. 