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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Tuberculosis (Edinb). 2016 Jan 2;97:8–17. doi: 10.1016/j.tube.2015.11.010

Figure 5. MTB antigen in alveolar cells of immunocompetent people.

Figure 5

A.

Immunohistochemical stain using polyclonal antibody against MTB in alveolar macrophages in lobular pneumonia of an immunocompetent person with developing post-primary TB (IHC Stain 200×).

B. Higher power of same section showing that the antigen is entirely intracellular. (IHC 1000×). AFB stain of these sections showed no organisms demonstrating a paucibacillary infection. The antigen staining is entirely intracellular until onset of necrosis. Reproduced from Hunter 5.