Tuberculosis of thyroid is a rare entity even among highly prevalent regions of tuberculosis. Primary tuberculosis of thyroid is even more rarer. The reason is attributed to the inherent relative immunity of the thyroid gland. Clinical manifestation is unpredictable accounting to both asymptomatic and variable benign and malignant mimicking symptoms. Clinical course may too vary depending on the thyroid dysfunction and complications. Aspiration cytology is diagnostic, though the yield is low. Histological diagnosis, depicting caseating granuloma added with acid fast staining confirms the diagnosis. High clinical suspicion is to be maintained to prevent total thyroidectomy.
