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Biopsy features of tuberculoid leprosy PNL (a) Cross-section of the nerve biopsy showing endoneurial infiltrate and perineurial thickening. (H and E ×40). (b) Presence of well-formed epithelioid cell granuloma (arrow) in the endoneurium (H and E ×100). (c) Endoneurial necrosis, arrow (H and E ×40). (d) Ziehl Neelsen (5%) stain for lepra bacilli is negative (H and E1000)
