Figure 2: (A) Giant Langhans cells with peripherally oriented and overlapped nuclei in patients with sputum smear-positive pulmonary tuberculosis (sputum cytology, Papanicolaou-stain, original magnification 40×). (B) Necrosis and scattered epithelioid cells in patients with sputum smear-positive pulmonary tuberculosis (sputum cytology, Papanicolaou-stain, original magnification 40×).