The ileum can be distinguished from the rest of the small intestine by Peyer's patches, which are made of this tissue.
In a process called ecotaxis, cells in this tissue position themselves based on interactions with VLA proteins. This tissue is the target of VEGF-C. Activation-induced cytidine deaminase acts on cells in germinal centers in this tissue. High endothelial venules allow this tissue to interface with the blood. Paracortices in one structure made of this tissue contain cells that express CD8. One cancer of this tissue is characterized by multinucleated (*) Reed-Sternberg leukocytes. The ileum can be distinguished from the rest of the small intestine by Peyer's patches, which are made of this tissue. Brugia nematodes cause a type of filariasis in this tissue, leading to fluid buildup that can manifest as elephantiasis. For 10 points, name this tissue whose namesake nodes store immune cells, including T and B cells.
In a process called ecotaxis, cells in this tissue position themselves based on interactions with VLA proteins.
lymphoid tissue [accept (secondary) lymphoid organs or lymph nodes or pretty much anything having to do with lymph; do not accept "lymphocytes"]