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. 2022 Mar 21;13:804838. doi: 10.3389/fneur.2022.804838

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Copyright © 2022 Sholeye, Williams, Loots, Tutu van Furth, van der Kuip and Mason.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Graphical illustrations of TB granulomas based upon key cellular elements in their categorizations, based upon literature. (A) Foreign body-type and hypersensitivity granuloma. (B) Caseous and cavitary granuloma. (C) Solid granuloma. (D) Caseous and fibrocaseous granuloma. (E) Nasent granuloma. (F) Category 1 granuloma. (G) Category 2 granuloma. (H) Category 3 granuloma. (I) Category 4 granuloma. (J) Category 5 granuloma.