ABSTRACT
Introduction: Erythema induratum remains one of the rarely encountered tuberculid although tuberculosis is known to be endemic in the developing countries. We report a case of erythema induratum recently encountered in our centre.
Clinical Feature: Clinically, erythema induratum typically manifests as ulcerative and indurated lesions on the lower limbs, especially the calves. Treatment Outcome: The patient responded well to a course of anti-tuberculous therapy with marked resolution of the lesions, suggesting the aetiological role of Mycobacterium tuberculosis in this condition. Conclusion: A short review of the distinguishing features of erythema induratum, the associated classical histological spectrum and the usefulness of polymerase chain reaction in the diagnosis of erythema induratum is given. A search for active foci of tuberculosis is advocated in all cases.There are many dermatological manifestations of tuberculosis, ranging from distinct entities such as tuberculosis verrucosa cutis, lupus vulgaris, scrofuloderma, to tuberculides. The term tuberculide is applied to any of a group of eruptions which arise in response to an internal focus of tuberculosis and clear with anti-tuberculosis therapy.
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