Lupus vulgaris mimicking lichen simplex chronicus.

Cutaneous tuberculosis is not an uncommon entity but it often remains undiagnosed and is inappropriately treated due to its varied presentation. We present a 42-year-old male with lupus vulgaris in the perianal area, who was treated as lichen simplex chronicus with steroids for two years. With four drug antitubercular treatment, the patient had a dramatic response. The case is being reported because in this HIV era with the resurgence of tuberculosis, not only will there be an increase in incidence but also more involvement of atypical sites.