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  Indian J Med Microbiol
 

Figure 11: Bone metastasis of lung adenocarcinoma presenting as unknown primary: H and E (A); note positivity for TTF-1 (B) and surfactant protein B (C)

Figure 11: Bone metastasis of lung adenocarcinoma presenting as unknown primary: H and E (A); note positivity for TTF-1 (B) and surfactant protein B (C)