26
Lymph node, H&E, 40X (detail of above, capsule, afferent lymphatic vessels, subcapsular sinus, cortex, follicles=nodules [mostly B cells], germinal centers [abnormal here, see slide 30], parafollicular cortex=deep cortex [mostly T cells], high endothelial venules, medulla, cords, sinuses, endothelial cells, reticular cells, hilus).
27
Lymph node, H&E, 40X (see also slide26 40X above for structures, germinal centers).
28-2
Lymph node, stained with silver to show reticular fibers [black], 40X (reticular fibers are made by reticular cells).
30
Lymph node [in mesentery see dark structures], H&E, 40X (see also slide 26 40X for follicular germinal centers, high endothelial venules).
138
Tonsil, palatine, H&E, 20 (crypt [white space beginning at top and extending down], crypt lined with stratified squamous epithelium non-keritanized, lymphatic follicles with large germinal centers).
138L
Tonsil, faucial, H&E, 40X (several crypts lined with stratified squamous epithelium non keritanized, lymphoid follicles).
140
Thymus, young, H&E, 40X (cortex [darker, developing T cells], medulla [lighter], epithelial reticular cells, macrophages, Hassall's corpuscles).
142
Lymph node, H&E, 40X (see also slide 26 40X for germinal centers, high endothelial venules).
147B
Spleen, H&E, 40X (capsule, trabeculae [dense c.t., stains red], white pulp, central arterie w/periarteriolar lymphatic sheath = PALS [mostly T cells], lymphatic follicles [mostly B cells, sometimes with germinal center], marginal zone, red pulp, splenic cords, venous sinuses, reticular cells).
141
Thymus, adult, 40X (extensive fatty tissue, cortex and medulla quite involuted).
301
Spleen, H&E, 40X (see slide 147 20X above for central artery with PALS and lymphatic follicles with large germinal centers).