Dual infection with Mycobacterium tuberculosis and Mycobacterium leprae at same site in an immunocompetent patient: An unusual presentation

Occurrence of two mycobacterial infections Tuberculosis & Leprosy in a single immunocompetent person and at single site is very unusual even in endemic countries like India. We report the case of 23yr old male, who previously presented with trophic ulcer under the ball of right great toe one yr back and diagnosed as a case of Multibacillary leprosy, now presented with chronic discharging sinus, ulceration, granulation and crusting over same site even under treatment with MDT MB. Such clinical presentation, in corroboration with proper diagnostic test likes AFB staining and BACTEC culture evaluation with no evidence immunosuppression prompted us to make a diagnosis of dual infection with M. leprae and M. tuberculosis at same site.