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This patient has prostate cancer, but somehow or other the paraaortic lymph nodes or periaortic lymph nodes are involved. I have googled and found both spellings, but for the life of me I can't figure out which is correct. "This showed a 1.6-cm retroperitoneal lymph node in the low pelvis anterior to the inferior vena cava suspicious for metastatic disease." There are so many lymph nodes in the body. Even looking at an anatomy diagram, I can't figure this out. Help!! Why didn't God design us all with zippers and fewer parts?? Any ideas would be greatly appreciated.
trying to post a couple of pics for you to see the paraaortic lymph nodes (not peri-).
http://en.academic.ru/dic.nsf/enwiki/4187282
http://en.academic.ru/dic.nsf/enwiki/719269
fyi, there are also preaortic and paracaval lymph nodes, etc.
it was a good question!