We report a case of a large soft tissue sinus in the leg that apparently followed a minor trauma. The sinus persisted despite being excised twice and seven months of anti-tuberculosis treatment. The latter was given on the basis of the histopathology report that showed chronic inflammation which could have been due to tuberculosis. A sinogram was done that revealed an unusually large sinus extending from below the ankle joint upto the level of head of fibula. Peroperatively the sinus was outlined by methylene blue. The sinography proved very fruitful. The complete excision resulted in permanent healing.