Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Rhesus monkey, Helly's* fluid, H. & E., 8.5 x.
The mesentery is composed of loose connective tissue covered by peritoneum. Three lymph nodes are seen within the mesentery. The division of each into cortex and medulla is well defined. Note the poor development of trabeculae in these nodes. This is often observed in lymph nodes situated deep in the body. The abundance of medullary substance noted in two of the nodes is also characteristic of abdominal nodes.
*Helly was a nineteenth-century Swiss pathologist.
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