18. Lupus Vulgaris (skin tuberculosis). Skin manifestations are variable and may be confusing in the diagnosis of leprosy, mimicking some forms of PB leprosy. Lesions are red (erythematous), infiltrated, slow growing, well defined and symptomless, but with a tendency to ulceration and scar formation. Nerves are not involved and (apart from scars), sensation on the lesions is normal. This little girl has a well developed lesion on the arm, but the most commonly affected areas are the face, neck and buttocks.
