Which of the following tuberculoides is characterized by involvement of sweat glands & hair follicle with non caseating epithelioid granuloma?
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.
Lichen scrofulosorum
Miliary tuberculosis
Papulonecrotic tuberculide
Lupus vulgaris
Bacterial Infection of Skin