Tuberculous lymphadenitis

46 year-old female patient is admitted in a hospital due to cervical node enlargement. The following slides are come from FNA cytology of cervical nodes. The cytological findings show multiple granulomas composed of epitheloid cells, lymphocytes and macrophages, but giant cells aren't identified. The Ziehl-Neelsen stain for AFB is negative, but TB-PCR shows positive result. The cytological diagnosis of this specimen was tuberculous lymphadenitis.