A 72 year old man homeless man dies in suspicious circumstances and an autopsy is performed


All India PG MCQ Question:13
A 72 year old man homeless man dies in suspicious circumstances and an autopsy is performed. On autopsy there was evidence of discrete areas of epithelioid macrophages in his lungs, approximately 1 mm in diameter. The area is surrounded by lymphocytes. There are other areas that are much larger that contain multinucleated giant cells. Which of the following can lead to this response?
a) pneumococcus
b) Mycobacteria
c) salmonella
d) Shigella
e) Clostridium tetani

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