Fig. 4From: Misdiagnosis of a multi-organ involvement hematogenous disseminated tuberculosis as metastasis: a case report and literature reviewPuncture biopsy of left lung upper lobe revealed coagulative necrosis combined with granulomatous inflammation with hematoxylin-eosin staining (black arrow). Ziehl-Neelsen staining detected acid-fast bacilli (black circle) and Periodic Acid-Schiff staining was negative. Magnification × 200Back to article page