Cutaneous Tuberculosis: An Update

Among extra pulmonary tuberculosis cutaneous tuberculosis occurs rarely, despite a high and increasing prevalence of tuberculosis worldwide particularly in developing countries. Cutaneous tuberculosis can be acquired exogenously or endogenously and present as a diverse of differing clinical morphologies. Diagnosis of these lesions can be difficult, as they resemble many other dermatological conditions that are often primarily considered. Moreover, microbiological confirmation is poor, despite scientific advances, such as the more frequent use of polymerase chain reaction. Furthermore, treatment of cutaneous tuberculosis is also challenging in many cases.