<prompt> Which of the following tuberculoides is characterized by involvement of sweat glands hair follicle with non caseating epithelioid granuloma?Lichen scrofulosorumMiliary tuberculosisPapulonecrotic tuberculideLupus vulgaris  <response>: 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. 