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Microscopic presentation of leprosy in household contact C13. In (a), hematoxylin and eosin staining at ×200 magnification revealed epidermal atrophy, vascular dilation, and lymphocytic infiltration in neurovascular bundle. In (b), S-100 protein staining of a dermal nerve cross-section revealed perineural and perivascular infiltration (at ×400 magnification). In (c), single AFB in perineurium and aggregated AFB in fascicle could be observed at ×1000 magnification.
