Ankle tuberculosis: an unusual presentation

Tuberculosis a leading cause of ill-health. Skeletal tuberculosis is a less common extrapulmonary manifestation of the disease which can cause monoarticular involvement. Isolated involvement of joints encompasses a spectrum of differential diagnoses such as infectious, inflammatory or neoplastic processes, where a high degree of suspicion is necessary for the diagnosis of tuberculous involvement. Here, we report a rare presentation of ankle joint monoarthritis due to tuberculosis without pulmonary involvement. Ankle and foot tuberculosis (AFTB) is very uncommon (<5%) of osteoarticular tuberculosis. Tuberculosis disease (TB) is more common among males than females. A 30-year-old male patient was brought to the orthopedics outpatient department with complaints of pain and discharging sinus in his left ankle since 1 year which were increasing over the period of time, with history of evening rise of temperature, loss of weight, loss of appetite and no history of trauma. On examination there were soft tissue swelling on the left ankle, a discharging sinus was present and gaseous material was seen oozing from the sinus. The patient was taken in emergency for debridment and curettage and gaseous material was sent for histopathological examination and culture and sensitivity test which was positive for mycobacterium tuberculosis.