Isolated tuberculosis of any joint is a rare entity and often mimics other conditions. Thus, diagnosis and timely treatment is often delayed in these cases. We here report a case of tuberculosis of synovial tissue of ankle in a 46 year old female. She had suffered for ten years prior to the diagnosis. The diagnosis was confirmed by MRI study of the joint and needle biopsy from the thickened synovium. Relevant literature pertaining to tubercular arthritis has also been reviewed at length.