Centre of tubercular granuloma is formed by –
Correct Answer: Necrotic zone
Description: Ans. is 'd' i.e.,Necrotic zone Tubercular granulomaTubercular granuloma contains mostly blood-derived macrophages, epithelioid cells (differentiated macrophages) and multinucleated giant cells (also known as Langhans giant cells), surrounded by T- lymphocytes.Caseous granulomas are typical of tuberculosis. These structures are formed by epithelioid macrophages surrounding a central cellular necrotic region with a rim of lymphocytes of the T- and B-cell types.
Category:
Pathology
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