Histologic comparison of<unk> types in a germinal center, H&E stain:- Centrocytes are small to medium size with angulated, elongated, cleaved, or twisted nuclei.- Centroblasts are larger<unk>  containing vesicular nuclei with one to three basophilic nucleoli apposing the nuclear membrane.-<unk>  have round nuclei, centrally located nucleoli, bland and dispersed chromatin, and flattening of adjacent nuclear membrane.<unk>  <unk>  are<unk>  of the immune system found in primary and secondary lymph follicles (lymph nodes) of the B<unk> areas of the lymphoid tissue. Unlike<unk><unk>  (DC),<unk>  are not derived from the bone-marrow hematopoietic stem<unk>  but are of mesenchymal origin. Possible functions of<unk>  include: organizing lymphoid tissue's<unk>  and microarchitecture, capturing antigen to support B<unk>  promoting debris removal from germinal centers, and protecting against autoimmunity. Disease processes that<unk>  may contribute include primary<unk> -tumor, chronic inflammatory conditions, HIV-1 infection development, and neuroinvasive scrapie.
Follicular dendritic cells
Medullary thymic epithelial cells
Marginal zone B-cell
Reactive lymphocyte
Regulatory B cell
Tingible body macrophage
Regulatory T cell
Memory B cell