Objective: Tuberculosis of thyroid gland is encountered in only 0.1% - 0.4% thyroid biopsies. We are presenting a case to emphasize inclusion of this rare disorder as a potential differential diagnosis during the assessment of thyroid lesions. Case report: 38-year female presented with a cystic nodule of left lobe of thyroid. Guided aspiration yielded only necrosed material. Biopsy revealed caseating granuloma with giant cells. Tuberculosis etiology was confirmed by PCR examination. Conclusion: Thyroid tuberculosis should always be considered as a probability during assessment of any midline cervical mass. Pre-operative diagnosis can avoid unnecessary surgery.