The word lymph is derived from the name of the Roman deity of fresh water, Lympha.
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In 1907 the zoologist Ross Granville Harrison demonstrated the growth of frog nerve cell processes in a medium of clotted lymph.
It normally contains a few lymphatics, loose areolar tissue and occasionally a lymph node called Cloquet's node.
It is named for the Norwegian pathologist Morten Ansgar Kveim, who first reported the test in 1941 using lymph node tissue from sarcoidosis patients.
Then, during the biopsy, the physician visually inspects the lymph nodes for staining and uses a gamma probe or a Geiger counter to assess which lymph nodes have taken up the radionuclide.
CMV infection (CMV retinitis or infection of organs other than liver, spleen or lymph nodes; onset at age one month or more)