Why is the brain's newly discovered immune system important to CCSVI research? Because it's all about the veins.
"Kipnis and his colleagues found that vessels expressing markers of lymphatic vessels elsewhere in the body ran along the dural sinuses, drainage lines in the brain that collect outgoing blood and CSF, emptying these fluids into the jugular vein. They also found that the vessels contained immune cells."


Brain Drain | The Scientist Magazine®
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The brain contains lymphatic vessels similar to those found elsewhere in the body, a mouse study shows.